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View Full Version : New Exhaust OBX RACING


hartley1080
02-21-2012, 01:37 PM
Well I have heard mixed reviews on the obx exhaust and with a recent mishap needed to replace my exhaust for cheap so decided to take a risk. Bought this on ebay for a little over $200 shipped. Will provide reviews and install pics sometime this weekend when I get it installed. Bolting it up to the stock header and adding the obx header later.

Thirty-Nine
02-21-2012, 02:14 PM
Looking forward to seeing how this looks installed. Many moons ago I had an OBX muffler on my Nissan. It sounded great.

blacksandiegovitz
02-21-2012, 03:06 PM
Keep us posted , also it this going on a hatchback?

hartley1080
02-21-2012, 03:22 PM
Yes this is going on a 2DR hatchback

cali yaris
02-21-2012, 03:45 PM
looks good. No cats and no resonator, I suspect this will be very LOUD. :thumbsup:

ROCKLAND TOYOTA
02-21-2012, 03:57 PM
CEL will be right around the corner....

Thirty-Nine
02-21-2012, 04:40 PM
CEL will be right around the corner....

QFT

cali yaris
02-21-2012, 06:42 PM
-- hey is there an O2 sensor bung on that? must be.

eBay seller has no phone number.

OTA'sTOY
02-21-2012, 06:46 PM
does it even have bungs for the o2?
also are there any hangers for the muffler? doesn't look like it from your pics
other than that 200 is a good find

1.5
02-21-2012, 06:52 PM
Loud and throwing codes... love it.

Header back on a Yaris? I wonder how the gains are going to be?

cali yaris
02-21-2012, 08:06 PM
Here's the bung if it's the same exhaust (think it is)
But without cats, you'll get CEL's for sure. Make sure you buy the anti-fouler, might fix it.

It's advertised as "cat-back" -- should be interesting to see if it's header-back, which would be nice for you racers.

http://www.tuningdepot.com/ebay/images/EX11428-0.JPG

1.5
02-21-2012, 09:18 PM
If it is header back I am interested. For the price those things are selling for it would be worth it to get and have a shop fab to fit my sedan.

1.5
02-21-2012, 09:44 PM
just checked website

directly from this parts page part #: 14-2802-1

"Direct Bolt-On to OEM Mid Pipe.Rear section for most popular sport compact cars. 14 Gauge Mandrel Bent Stainless Steel Piping For Maximum Flow.Dyno Proven Performance, Increase Torque And Horse Power. Deep Throttle Sound!"

looks like it might even only be an axelback or cat back

malibuguy
02-21-2012, 10:18 PM
Thats a manifold back for sure.

Its all ching-chong meow mix...but hey if it fits then sweet...then splice in a cat.

1.5
02-21-2012, 10:23 PM
Thats a manifold back for sure.

Its all ching-chong meow mix...but hey if it fits then sweet...then splice in a cat.

how do you know their site even says its not

cali yaris
02-22-2012, 01:01 AM
Because it looks long enough to be header back. However, the ads I saw said cat-back.

so let's just follow along as the OP receives and installs his/her new goodie. :thumbsup:

1.5
02-22-2012, 01:08 AM
Because it looks long enough to be header back. However, the ads I saw said cat-back.

so let's just follow along as the OP receives and installs his/her new goodie. :thumbsup:

Good call. Its just so hard to tell with some online merchants, they post a pic of one item and sell something completely different.

ilikerice
02-22-2012, 04:19 AM
thats ebay for ya... like russian roulette

33OH
02-22-2012, 05:20 PM
thats ebay for ya... like russian roulette

Haha. Subscribed - interested in if it has a place for the O2 sensor as well.

cali yaris
02-22-2012, 07:57 PM
^ It does; I posted a pic

1.5
02-22-2012, 08:38 PM
^ It does; I posted a pic

Are you able to get this exhaust? If so what could you get it for?

blacksandiegovitz
02-22-2012, 09:02 PM
Updates???

hartley1080
02-22-2012, 09:11 PM
Ok so it looks like this has gained some interest I wont keep you waiting any longer. This was a direct install with all the hangers to match up with the factory rubber mounts. We did have to modify the bolts where the down pipe meets the manifold just slightly so they would go through the flange and tighten down. Just a quick turn on the grinding wheel. Drove the car for a few hours earlier no CEL'S but, I know they are coming. Garm you are correct this thing is LOUD probably gonna put a performance cat in sometime in the near future. I was very happy with the fit and finish and quality for the price I was hoping the muffler wouldn't be very buzzy if that makes any sense but, it is and will probably be switching to the dc sports axle back to try and get a deeper tone. Well my final verdict is for a little over 200 it was worth a shot and is a good buy if you can handle a louder exhaust overall I am happy with it might change some things in the future but, feel like for the moment it will suit my needs. Install time was maybe 20 min with a lift and some air tools. Here are some pictures.

33OH
02-22-2012, 09:21 PM
^ Very cool - thanks for the review!

1.5
02-22-2012, 09:22 PM
nice! and guess it is a header-back! Did you outfit it with a o2 defouler?

hartley1080
02-22-2012, 09:34 PM
I have not ordered an 02 defouler but, it will be ordered in the next few days.

1.5
02-22-2012, 09:50 PM
wow header back exhaust almost straight piping no cats/reso's and without a defouler youre throwing no codes yet? crazy but I guess with these "smart" ecu's you may not be safe forever lol.

I absolutely want this exhaust now.

hartley1080
02-22-2012, 09:54 PM
I will post a video later.

Jason@SportsCar
02-22-2012, 10:50 PM
What is the OD of the pipe?

cali yaris
02-22-2012, 11:26 PM
^ looks like 2" from the pics.

Are you able to get this exhaust? If so what could you get it for?

I'll have to pass on this one. For that kind of pricing, best to buy from eBay.

1.5
02-22-2012, 11:27 PM
Gotchya ^

Anyone have any idea of the difficulty of fitting a LB exhaust onto a sedan?

hartley1080
02-22-2012, 11:48 PM
That was the one thing I forgot to do is measure the I.D. and O.D. of the pipe

thebarber
02-23-2012, 10:38 AM
looks like the flange at the axle is in a different place than stock....if so, you won't be able to use it with other axlebacks...

likely sounds raspy without a res or cat

cali yaris
02-23-2012, 11:30 AM
Post a vid so we can all hear it -- rev it up good when you do, please.

1.5
02-23-2012, 12:21 PM
Any shots from rear

ilikerice
02-23-2012, 12:27 PM
looks like the flange at the axle is in a different place than stock....if so, you won't be able to use it with other axlebacks...


wont be a direct bolt, but it is in the same spot.. looks like the flange is 90* off

cali yaris
02-23-2012, 01:25 PM
Why in the world did they do that? They would have TWO products to sell if that lined up with anyone else's exhaust. :iono:

thebarber
02-23-2012, 02:35 PM
Why in the world did they do that? They would have TWO products to sell if that lined up with anyone else's exhaust. :iono:

magnaflow did the same for their catback for the 1st gen matrix/vibe

likely because from their perspective it doesnt matter...axlebacks don't typically add power, just sound

Jason@SportsCar
02-23-2012, 02:49 PM
Hard to tell much from the pics, but looks like a great value. We have more than that into our custom header back setups (not including the muffler), if this was 2.25" I would consider it the next time we need to build an exhaust.

malibuguy
02-23-2012, 09:16 PM
how do you know their site even says its not

Because the only flange connections is at the rear section and at the manifold that requires the ball connection that this exhaust has. Dont forget my profession and i know our exhausts very well.

malibuguy
02-23-2012, 09:18 PM
Hard to tell much from the pics, but looks like a great value. We have more than that into our custom header back setups (not including the muffler), if this was 2.25" I would consider it the next time we need to build an exhaust.

I can make you a bolt on one...but im not sure what the 2nd gens have added length...its probabbly just like a sedan in the middle then with the shorter rear section like a hatchback

cali yaris
02-23-2012, 10:52 PM
The 2012 would be 3rd gen :smile:

07stlYaris
02-24-2012, 11:09 AM
I got a quick reply from the seller as to the fact that it appears to delete the cat and he said he would get back with me. As stated in the other posts, it appears to be set up as a cat delete per the pics. Since it appears to just be chrome plated (not SS), I'm welding in an OEM 2.0 Vanagon Cat since they are nearly see through and no bigger than a 1lb coffee can. Should calm the rasp down a bit too.:iono:

I ordered one regardless of the cat delete because I have a welder and can hit that un-delete.

Darn emissions require a cat otherwise a reso would be all I need.

Just came in. It's stainless and pretty decent quality. Heavy flanges and clean welds. I think I'll avoid the Cat for now and wait til inspection time.

Threw a CEL on the way to work because I put the post-cat in. looks like a de-fouler is in my future. Pretty darn loud too so in goes the Resonator. Pics when I'm done. Hate that "workin on it look".

cali yaris
02-24-2012, 12:01 PM
I'd put in a resonator before I'd put in a cat. :biggrin:

blacksandiegovitz
02-24-2012, 02:30 PM
I'd put in a resonator before I'd put in a cat. :biggrin:

^^ oh yeah one 18" resonator ftw !

1.5
02-24-2012, 05:28 PM
I like that it deletes the cat and if sound is killing you... yes add a reso.

malibuguy
02-24-2012, 08:59 PM
Hushpower...works wonders

hartley1080
02-25-2012, 06:45 PM
Still waiting for a nice day to get the go pro out and take a good video. I think most of the rasp is coming from the muffler I am going to add a resonator and the dc sports exhaust and header but, will take a video of the current setup. Hopefully have something uploaded Monday. Recommendations for a good resonator ?

ROCKLAND TOYOTA
02-25-2012, 06:53 PM
you confirmed that other axle backs will fit ????

hartley1080
02-25-2012, 07:02 PM
From the pictures of the DC sports exhaust I will have to cut and weld the flange in the proper place nothing that can't be changed with a welder and cutoff wheel.

1.5
02-25-2012, 07:31 PM
Whay are you changing the axel back portion?

ROCKLAND TOYOTA
02-25-2012, 08:05 PM
From the pictures of the DC sports exhaust I will have to cut and weld the flange in the proper place nothing that can't be changed with a welder and cutoff wheel.

too bad. id like to hear that midpipe with my jdm trd muffler.....

malibuguy
02-26-2012, 12:08 PM
Still waiting for a nice day to get the go pro out and take a good video. I think most of the rasp is coming from the muffler I am going to add a resonator and the dc sports exhaust and header but, will take a video of the current setup. Hopefully have something uploaded Monday. Recommendations for a good resonator ?

I already said this...Hushpower does wonders. Get it and say goodbye to rasp

hartley1080
02-27-2012, 02:33 PM
Any Idea were I can get a HushPower resonator.

kou
02-27-2012, 05:05 PM
Any word on the size of this pipe.

hartley1080
02-27-2012, 05:23 PM
Just measured the pipe it is 2.25 O.D.

1.5
02-27-2012, 05:28 PM
Just measured the pipe it is 2.25

ID or OD?

malibuguy
02-27-2012, 08:10 PM
Wow how about google that shit

1.5
02-27-2012, 10:28 PM
True im looking more for ID.

hartley1080
02-28-2012, 12:10 AM
Will check the I.D. soon

47_MasoN_47
02-28-2012, 01:22 PM
Wow how about google that shit

lol http://lmgtfy.com/?q=purchase+hushpower+resonator

1.5
02-28-2012, 01:49 PM
lol http://lmgtfy.com/?q=purchase+hushpower+resonator

Is that how that website works? I always get so confused when I get there. lol

47_MasoN_47
02-28-2012, 02:37 PM
It can be confusing. So many steps in the process :P

hartley1080
02-28-2012, 02:47 PM
Thanks for the link

07stlYaris
03-06-2012, 11:47 AM
Just installed this OBX on my 07 LB and now I have a little bit of ping going on. I put one of the 2 Cats back in (after the O2 sensor) and figure that's the problem. Let me know if I should put the other Cat in or move the O2 sensor to after the Cat.???:iono:

Since both O2 sensors are basically seeing the same thing now I would guess I'm right with the location thing. just want a second opinion.

cali yaris
03-06-2012, 01:03 PM
Stock location is after the first cat.
So the 2nd cat doesn't matter at all as far as the ECU is concerned.

If you have one cat, the second O2 sensor should be after that.

I'm surprised you aren't getting a CEL with both sensors seeing basically the same thing. Your car should be thinking your cat is not working. :iono:

07stlYaris
03-06-2012, 01:22 PM
Got the CEL too, just didn't mention it. I'll be relocating the O2 sensor this weekend when I put in the resonator. Thanks for the quick reply and reaffirmation of my suspicions. Would the ECU lean out the mix because of what the 2nd O2 sensor sees?

Bluevitz-rs
03-06-2012, 05:09 PM
The first sensor isn't an O2 sensor, it's a A/F sensor. The second is indeed an O2 and is only there to read what's coming out of the CAT.

cali yaris
03-06-2012, 06:28 PM
Just keeping it simple. I knew he must be getting a CEL.

07stlYaris
03-07-2012, 12:19 PM
Are they both the same thing just used for different purposes? Are there any other consequences to moving the O2 sensor further downstream? Should I wrap the headpipe to keep the cat warmer? Just trying to get as much info as possible before I get under there one more time.

cali yaris
03-07-2012, 01:17 PM
^ The two sensors are not the same. Technically, the first one is more of an air/fuel sensor (though it's kind of a weird hybrid design by the way the ECU reads the voltages) and the second one is an O2 sensor to monitor the cat. Pretty sure that's all it does.

Why would you move it downstream?
And why would you want it to be "warmer"?

07stlYaris
03-07-2012, 01:44 PM
Downstream past the Cat. Catalytic converters function better at higher temps leading to a more accurate reading for the O2 sensor. Higher temps within reason of course. I've seen melted catalyst in engines that ran waayy too lean. Anyway, thanks for the clarity on the sensors.

cali yaris
03-07-2012, 02:01 PM
yes, as discussed the 2nd sensor must be AFTER the cat.

CTScott
03-07-2012, 02:08 PM
^ The two sensors are not the same. Technically, the first one is more of an air/fuel sensor (though it's kind of a weird hybrid design by the way the ECU reads the voltages) and the second one is an O2 sensor to monitor the cat. Pretty sure that's all it does.

Why would you move it downstream?
And why would you want it to be "warmer"?

They are both platinum coated zirconia sensors, but the Air/Fuel sensor has the ability to detect the ratio over a wide range (i.e wide band sensor). The heated O2 sensor can only detect that the AFR is at stoich or is rich or lean - It can not detect how rich or lean it is.

So, the air/fuel sensor before the cat allows the ECM to precisely control the ratio and the heated O2 sensor after the cat allows the ECM to monitor that the fuel ratio is properly adjusted to allow optimal operation of the 3 stage cat (which performs best at an AFR of 14.7).

07stlYaris
03-15-2012, 06:45 PM
So, after moving the O2 sensor to after the Cat I still have the lean condition. (Light pinging). Should it correct itself or should I disconnect the battery and clear the ECU? If this continues, what would happen if I upgraded the injectors (cart before the horse??)? By the way, no CEL for 3 days so the lean condition just seems to be what the engine wants??? Fricken weird if you ask me.

1.5
03-15-2012, 07:19 PM
I thought with our "smart" ecu's that kinda stuff would be auto corrected by the car and have more fuel dispensed to meet the demand the increased air creates.

07stlYaris
03-15-2012, 08:38 PM
I agree but i still hear a little pinging and power is down a little too. :iono:

I'm going to do a little research on injectors and see if I can fool the ECU a little bit. if not, I might go with 1 extra injector and go analog on the control.

All I can say is DAMN COMPUTERS:mad:. I miss my 1967 Porsche 912. 2 carbs, 1 coil and the most electronic part of the car was the radio. Don't ask.

cali yaris
03-15-2012, 08:39 PM
Definitely disconnect the battery and force a relearn. I would do this anytime any change is made to an engine/performance part on the car.

Jason@SportsCar
04-16-2012, 07:04 PM
Just ordered this... Noticed over the weekend that we have a leak where one of the hangers is welded on the custom exhaust on the 99. The off-track excursions have also crushed the tubing in a few spots. So it was time to rebuild it, and this is way less than the custom setup. We will just hack off the OBX muffler and use our Coast Fabrication race muffler.

Jason@SportsCar
06-04-2012, 01:33 PM
Have not had time to put the new exhaust on, but did start the prep work - we are not using the heavy OBX muffler, we will use a Coast Fab lightweight muffler, so I went at it with the plasma cutter.

They put a lot of fiberglass in the case.
https://lh3.googleusercontent.com/-0jLQ7uEFk8U/T8zY0Z5xGKI/AAAAAAAAA4s/8mJMStX7i1o/s1152/2012-06-03_15-36-47_218.jpg

Not so sure how the Scotch tape is going to hold up in there. :laugh:
https://lh4.googleusercontent.com/-aoxALNUEPdM/T8zY803A0MI/AAAAAAAAA40/ay8Jp-shtBA/s1152/2012-06-03_15-38-18_632.jpg

Not much of a heat barrier between the tube and first layer of fiberglass. And the perforated section is only 6" long, not much sound going into the case, but a lot of it going out the back.
https://lh6.googleusercontent.com/-14YMqeR3waI/T8zZFVD46EI/AAAAAAAAA48/xhtZzBGPmHs/s1152/2012-06-03_15-39-19_673.jpg

07stlYaris
06-04-2012, 01:38 PM
And for some reason, that mess doesn't quiet things down nearly as well as it looks like it would. I replaced mine as well with a Monza resonated tip and a baffled glasspack-style muffler. Waaay better sound and no sharp rasp.

Jason@SportsCar
08-21-2012, 09:28 PM
So after a few months of looking at the OBX sitting in the corner of the garage I took some time today and tried to install it... I say try because it turns out the header on the 99 car is not an exact match to the production DC Yaris header (the first clue is the fact is has no O2 bung, we think this may have been the prototype), the exit of the collector is at a different angle than the OE and DC header so the OBX will not line up with my headers outlet. :mad:

Rather than mod the OBX we are just patching up the exhaust that is already on the car.

Kind of wish I had not cut off the OBX muffler before the test fit. :laugh: Oh well. If anyone using a OE/DC/WR headers wants the start to a killer custom setup I will make you a great deal. Just install your favorite race muffler (I recommend Coast Fabrication) and you will be ready to rock.

4/20 NEVER FORGET
08-22-2012, 02:38 PM
I ended up buying this exhaust off of amazon for $175 shipped. Since it's 2" I plan on cutting it and welding it onto the stock exhaust right at the end of the resonator where the diameter reduces to 1.75". If figured with the time and cost to have a shop make me a crush bend mid-pipe I could get this and have them cut and install it instead.

TPA5
08-22-2012, 11:28 PM
I ended up buying this exhaust off of amazon for $175 shipped. Since it's 2" I plan on cutting it and welding it onto the stock exhaust right at the end of the resonator where the diameter reduces to 1.75". If figured with the time and cost to have a shop make me a crush bend mid-pipe I could get this and have them cut and install it instead.

A video would be nice if you do get that done, this may be an interesting exhaust option, provided it doesn't sound buzzy.

4/20 NEVER FORGET
08-23-2012, 03:21 AM
I'll post a video after I get this installed tomorrow. Also to clairify, I measured the inner diameter at 2.25".

I don't think it will be too loud since it will still have both cats and the stock resonator. I had a Megan axle back before that was very quiet, but I ended up taking it off because i have my car quite low and it was hitting the suspension.

4/20 NEVER FORGET
08-23-2012, 05:47 PM
I got the exhaust installed today. Like I said previously I had the factory and OBX exhausts cut to meet just after the factory resonator.

I took a picture of the inside of the resonator so you all could see that is straight-through in design. I was going to have it changed out if it wasn't, but looking at it there didn't seem a reason to have it replaced.

Some work was required to make the muffler fit into the space available under the car, we had to take a sledge hammer and hammer the spare tire well in a bit as well as bend the toe-hook out a half-inch so that the muffler could be fitted nice and tight under the car. With the factory hangers it wanted to hang pretty low, we used the OBX back mount that holds onto the pipe next to the muffler and the exhaust shop welded a hanger to the top of the muffler, just out of sight.

The muffler is quite loud compared to the Megan axle-back I had before. I'm going to give it a week before I make a final decision but I might have it cut off and changed out with a Magnaflow or some other exhaust. I do really like the way the muffler looks though, the tips look nice tucked up right under the bumper.

Here's a video, I should have revved the car up a bit more but it's what I have for now. I'll take another one and post it when I get a chance.

http://www.youtube.com/watch?v=niZYgO0vvrU&feature=plcp

And to respond to TPA5, while loud, there is no buzz or rasp that you sometimes get. I've had a lot of Honda cars so I know what you mean about buzzy or raspy. If this car was a bit faster I could justify the sound it makes, but for now I would like it a bit quieter.

yak
02-21-2014, 01:46 PM
You want loud...then try this thing
Holy crap this bugger is loud, I cant imagine what this would be like as bolt on.
I just had the same OBX system installed but spliced in a hi-flo cat & a resonator (both Vibrant parts)...Pictures to follow

Can anyone please suggest a quieter muffler cos this one has gotta go

bebeelo
02-21-2014, 02:28 PM
You want loud...then try this thing
Holy crap this bugger is loud, I cant imagine what this would be like as bolt on.
I just had the same OBX system installed but spliced in a hi-flo cat & a resonator (both Vibrant parts)...Pictures to follow

Can anyone please suggest a quieter muffler cos this one has gotta go

tanabe medallion touring.....or stock :thumbup:

cali yaris
02-22-2014, 01:31 AM
I had a Vibrant that was reasonably quiet. Which one did you get? You can't miss with Magnaflow, it will be very deep and warm.

ezhacker1
02-22-2014, 05:51 AM
it will be very deep and warm.

:bellyroll::bellyroll: TWSS

I do prefer the deep bass growl of the exhaust. I can live with what i have, its as loud as I want it, with no highway drone, just lacks the depth and warmth. Time to do some more research.

malibuguy
02-23-2014, 12:40 AM
Dynomax vt. Quiet until you lean on the throttle. No drone.

Rigaud
05-26-2014, 06:40 PM
I got one of these sitting in my shop. Decided to install it so I ordered a Cat and resonator from Magnaflow. Gonna cut it up later this week and weld it all together, see what this set up sounds like. I'll post a video after.

tooter
05-27-2014, 03:32 AM
MagnaFlow is a good choice. :smile:

I run a Weapon R 4-2-1 header, and Garm's MagnaFlow center exit exhaust with a stainless steel resonator tip. It sounds super deep and mellow with no drone.

https://www.youtube.com/watch?v=FL4CcjF8Z18

Greg

Rigaud
05-27-2014, 07:50 AM
MagnaFlow is a good choice. :smile:

I run a Weapon R 4-2-1 header, and Garm's MagnaFlow center exit exhaust with a stainless steel resonator tip. It sounds super deep and mellow with no drone.

https://www.youtube.com/watch?v=FL4CcjF8Z18

Greg

Oh thank you Greg. That's sounds exactly like what I did on other cars. Your car sounds awesome.
The resonator I got is too long but I have all the tools (toys) in the shop at work to cut open and shorten it. :smile: I absolutely need to install the Catalyctic converter on it too because here if I get caught I get a nasty ticket plus sent to inspection.

Also a 1ZZ TB sitting in my home shop to be installed. :wink:

tooter
05-28-2014, 10:06 PM
Oh thank you Greg. That's sounds exactly like what I did on other cars. Your car sounds awesome.
The resonator I got is too long but I have all the tools (toys) in the shop at work to cut open and shorten it. :smile: I absolutely need to install the Catalyctic converter on it too because here if I get caught I get a nasty ticket plus sent to inspection.

Also a 1ZZ TB sitting in my home shop to be installed. :wink:

Cool. :smile:

Don't forget to knock off the epoxy from the tiny factory adjusted hex head idle screw and turn it out one turn counter clockwise... before you install it. You'll be glad you did... :wink:

(screw is at top center of photo just to the left of the nut)

http://i17.photobucket.com/albums/b90/compost_bin/car/IMG_6637_zps7f06afda.jpg

The butter fly is set to idle a 1.8 engine which is way too far open to idle a 1.5. If you don't turn it down, the ECU will go crazy trying to find an idle outside of its operating parameters.


Greg

Rigaud
05-29-2014, 07:16 PM
Hi Greg, thanks for the info!

I installed my OBX exhaust line last night with a Magnaflow Cat and resonator. I cut the resonator shorter to fit, the one I had was too long. All rewelded like the way it was purchased. My header, a 4-1 of low quality (better then stock manifold) was missing the bung for the sensor, another item to drill a hole for and mig weld. Got it all done and I was pleasantly surprised with the front to rear line. No drumming at all or resonance through the floor. Nice deep sound up to 2500 - 2700 but higher then that and it's too loud for street driving. Gonna pick up some medium and fine stainless steel wool and cut open the muffler. Might redirect the internals depending how it flows too.

As for the 1ZZ TB, that went well and I really don't understand why people use a union to bypass the coolant lines. One of the hoses is placed just right and long enough to simply cancel one hose and use the other to connect in a loop. Voila.......solved. Removed the epoxy on the idle setscrew but haven't turned it yet. I did the chip swap while everything was plugged in. Drilled the rivets, swapped and new rivets. I messed up my intake tube so I made the stock tube and airbox fit, no issues with anything at all. That's temporary till I get it done right with my K7N cone filter.

Sorry Greg, I saw your response after I did it. I have a 2700 rpm cold start up and it lasts 20-30 secs and goes down but warm idle is at around 1000rpm. I'll adjust the idle with the engine and ignition off. Proper idle will solve that high idle Code I got, settle it at around 750rpm. Now I need to get a quicker response, anything I can do or add (module) to rectify the response time?

Cheers
John

chris1986
06-09-2014, 11:58 PM
If i understand correctly the obx system would also fit the mk1 yaris 1999-2005?

I have a diesel yaris so maybe need to modify the part that meets the header

tooter
06-10-2014, 11:05 AM
Hi Greg, thanks for the info!

Sorry Greg, I saw your response after I did it. I have a 2700 rpm cold start up and it lasts 20-30 secs and goes down but warm idle is at around 1000rpm. I'll adjust the idle with the engine and ignition off. Proper idle will solve that high idle Code I got, settle it at around 750rpm.

It's ok, no harm done. Mine ran high until and drove the ECU crazy hunting around in vain for an idle until I figured it out.

One hint: make damn sure that the allen wrench you put into that little screw fits tight, because it does not want to turn, and you do not want to strip the head. Use a magnifying glass to determine that all of the epoxy is knocked off. Penetrating oil can help it to break free. When it moves, it will make a satisfying cracking sound and you're home free. :smile: I found that about one counterclockwise turn closes the butterfly enough to get a good stable idle. After I got mine where I wanted it, I simply put a little dab of clear silicone caulk to make sure it stays there.

Now I need to get a quicker response, anything I can do or add (module) to rectify the response time?

Cheers
JohnBy quicker response, do you mean quicker opening or quicker closing?

My Yaris has always been slow to close (long throttle hang time) from the very first day I bought it brand new bone stock. I'd get one of those aftermarket throttle control thingies except there's no way to confirm if they will actually cause the butterfly to close faster than stock. So I've gotten used to compensating by letting off the gas first without touching the clutch pedal, waiting a beat, and then shifting.

Greg

Rigaud
06-10-2014, 07:43 PM
It's ok, no harm done. Mine ran high until and drove the ECU crazy hunting around in vain for an idle until I figured it out.

One hint: make damn sure that the allen wrench you put into that little screw fits tight, because it does not want to turn, and you do not want to strip the head. Use a magnifying glass to determine that all of the epoxy is knocked off. Penetrating oil can help it to break free. When it moves, it will make a satisfying cracking sound and you're home free. :smile: I found that about one counterclockwise turn closes the butterfly enough to get a good stable idle. After I got mine where I wanted it, I simply put a little dab of clear silicone caulk to make sure it stays there.

By quicker response, do you mean quicker opening or quicker closing?

My Yaris has always been slow to close (long throttle hang time) from the very first day I bought it brand new bone stock. I'd get one of those aftermarket throttle control thingies except there's no way to confirm if they will actually cause the butterfly to close faster than stock. So I've gotten used to compensating by letting off the gas first without touching the clutch pedal, waiting a beat, and then shifting.

Greg

Thanks Greg.

I'll continue this dialogue we got going on my thread so we don't throw this one off the rails. hehehe

http://www.yarisworld.com/forums/showthread.php?p=739172#post739172

07dirtyaris
09-06-2015, 11:28 PM
I just installed the OBX exhaust. I paid 175 including shipping from Sparktec. I couldn't pass it up for that price. It is a Cat delete full exhaust. It measured 2 1/4 OD and just under 2 1/8 ID. Hangers were all in the right spot. O2 bung was there, but will def need a non fouler since I set off they CEL within the first 25 min of driving. It has a nice deep tone to it, mid RPM it has a slight fart can sound, you won't be mistaken for a civic but it's there.. It has a good scream when up around the limiter. I'll post some videos and pics in a couple days. Overall I am happy with the purchase. I put a magnet to it and it didn't stick so I'm guessing its actually SS and not chromed metal. It was a fairly easy install. One of the manifold bolts was a b*tch to get off. Got new bolts and gasket to connect it to manifold and made sure to put anti sieze so I wouldn't have that same problem. One thing that helped me out a lot when installing the bolts to the manifold I compressed the springs and put zipties on them to keep them compressed, and cut them off once I had the bolts in the threads. Also ground down the retainer on the bolts just a little, if you get one you'll know what I'm talking about.
My final plan for it is to cut the muffler off and put a 100 cell catalytic converter where it was with a 7 inch resonated tip. That will hopefully be done in a few weeks when I go visit my parents and have access to a welder. I'll post up some pics and vids of that as well when I get it done.

Rigaud
09-08-2015, 08:55 PM
I just installed the OBX exhaust. I paid 175 including shipping from Sparktec. I couldn't pass it up for that price. It is a Cat delete full exhaust. It measured 2 1/4 OD and just under 2 1/8 ID. Hangers were all in the right spot. O2 bung was there, but will def need a non fouler since I set off they CEL within the first 25 min of driving. It has a nice deep tone to it, mid RPM it has a slight fart can sound, you won't be mistaken for a civic but it's there.. It has a good scream when up around the limiter. I'll post some videos and pics in a couple days. Overall I am happy with the purchase. I put a magnet to it and it didn't stick so I'm guessing its actually SS and not chromed metal. It was a fairly easy install. One of the manifold bolts was a b*tch to get off. Got new bolts and gasket to connect it to manifold and made sure to put anti sieze so I wouldn't have that same problem. One thing that helped me out a lot when installing the bolts to the manifold I compressed the springs and put zipties on them to keep them compressed, and cut them off once I had the bolts in the threads. Also ground down the retainer on the bolts just a little, if you get one you'll know what I'm talking about.
My final plan for it is to cut the muffler off and put a 100 cell catalytic converter where it was with a 7 inch resonated tip. That will hopefully be done in a few weeks when I go visit my parents and have access to a welder. I'll post up some pics and vids of that as well when I get it done.
I had no choice but to instal a cat, driven on the street and don't feel like getting towed plus a fine. I used a freeflow cat from Magnaflow and also used a 6" dia. muffler custom cut shorter as a resonator. Second year with this system and all is A1.

07dirtyaris
10-19-2015, 03:32 AM
I finally got video of the OBX exhaust.
https://youtu.be/Pd999uXGkEA
I have others where im driving on a closed off timber road up in Michigan. (My dad said he was able to hear it screaming through the forrests almost 2 miles away!)They are on my phone with a broken screen!! as soon as i fix it ill post those up here as well. I didnt get the time to put on the cat and resonator and cut the muffler like i planned a couple weeks back. wiring up my switches took up more time than i expected.

The exhaust did set off a CEL. I bought a BLOX Racing Check engine light remover adapter for 10.XX on Amazon. I have driven almost 1500 miles since i put it on and have not had a CEL go off.

tykeeler
10-30-2015, 11:02 AM
Hey everyone, I just installed my obx last night and man is it loud! Took it on a test drive and all went well. It did not match up with 2014's original hangars, so some modifications were made. I'll post a video later today.

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tykeeler
10-30-2015, 12:55 PM
Well after driving for about 30 miles the CEL came on even with the spacer...

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07dirtyaris
10-31-2015, 04:01 PM
Well after driving for about 30 miles the CEL came on even with the spacer...

That sucks.. I'm guessing you reset your ecu so it would relearn with the open exhaust on there. That's all I did on mine and it is still working like a charm. Besides that how do you like it?

I know Garm made a spacer that was supposed to do the trick on our yaris. Maybe somebody has one of those or he still has one left somewhere. Or others who have this exhaust could chime in!

tykeeler
10-31-2015, 11:31 PM
I love it. I reset the computer this morning and so far so good. Hopefully it stays off.

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