Intrest in a sedan center exhaust rear section?

[malibuguy]

I can produce them if wanted...or just about anything else using my car as a jig. Ive done it before i can again. I an do mild or loud options all in 409ss to match the factory exhaust.

Next week i may swap my stock exhaust back on and whip up a center rear section to see what its going to take.

[1.5]

headerback to match up to a dc header?

[baseballfan416]

I'd be more interested in a legitimate header back exhaust option. Seems pointless to have header and axle back when the mid pipe is somewhat restrictive... Kinda wishing I had a hatch merely for that reason.

[malibuguy]

Its doable...just a little more complicated to produce. And i would not be able to sell that to california residents b/c emissions

[tooter]

Come on, malibu...
If California can produce and sell $14,000,000,000 worth of pot every year, you can certainly sell one little exhaust. :tongue:

[malibuguy]

We cant even ship our cats there anymore or we face hoooge fines.

Axle-backs are not a problem however ;)

[tooter]

Wow... car exhausts are illegal contraband?
Sorry, didn't know it was that bad.
I'll be glad when the government
goes bankrupt like Greece. :smile:

[ViosFan]

How much do you think an axle back would cost? I wouldn't mind it being loud as long as it has a nice low rumble to it.

[cali yaris]

car exhausts are illegal contraband? Sorry, didn't know it was that bad.

I don't think it is. Megan is making a midpipe for us for the liftback, that is 100% legal to sell, and Megan Racing is located in SoCal.
However, it is "for show and offroad use only" and must be clearly marked and marketed as such.

malibuguy, can't you do the same thing?

[malibuguy]

We just cant. Even summit racing cant sell cats to california.

Pricing i would predict in the 250-350range plus shipping. Ill try to make a loud one this week to test it out

[malibuguy]

I put the car on the lift the other day to start planning...

There is no easy convienent way to hang the center exhaust without drilling.

However...dual tailpipes (one on each side) is very doable as there is threaded bolt holes in the frame rail on the driver side. I think im going to make duals one day just for the hell of it....

[SAV912]

I put the car on the lift the other day to start planning...

There is no easy convienent way to hang the center exhaust without drilling.

However...dual tailpipes (one on each side) is very doable as there is threaded bolt holes in the frame rail on the driver side. I think im going to make duals one day just for the hell of it....

Wouldn't that make it easy enough to route pipes and hang them from the edges but not exit the car on the edges? Can't they be run from the edges to the middle without a hangar in the middle or is that too much pipe to have unsuspended?

Don't know for sure because I have a liftback. Just thinking out loud.

-C

[packetrace]

I am interested !

[packetrace]

if you do a cat back...make it so we can bolt the cat to axle section to an other axle-back system :)

[malibuguy]

The only downsidento doing a cat back like that. Is that i would have to reduce the tubing to a smaller size to make an oem replica connection to allow maximum flexablilty. Really a bunch of work to work backwards.

Ideally an exhaust needs support every 3-5ft of pipe and just about every direction change. Without easy convienent holes to support a center exit pretty much kills my idea of a production run. Im not saying it cant be done. Im just not drilling extra holes in my car.

[tooter]

I share your aversion for drilling on a vehicle. It's not worth the loss of strength and the hightened likelyhood of rust. I did have to drill one tiny hole for mine, and made sure it was in a noncritical area.

When I think of a dual conversion for a Yaris, this design seems to make some sense as long as the muffler is small and nothing hot is near the brain.
http://www.vividracing.com/catalog/images/fabspeed964dualexhaust.jpg

[cali yaris]

and nothing hot is near the brain

That made me think of the ECU, which is just a few inches from the exhaust header. :smile:

[tooter]

Hey, you're right! I didn't even think of that.:rolleyes:
I was thinking of that big plastic looking box underneath the rear. Is that also electronic?

[why?]

I share your aversion for drilling on a vehicle. It's not worth the loss of strength and the hightened likelyhood of rust. I did have to drill one tiny hole for mine, and made sure it was in a noncritical area.

When I think of a dual conversion for a Yaris, this design seems to make some sense as long as the muffler is small and nothing hot is near the brain.
http://www.vividracing.com/catalog/images/fabspeed964dualexhaust.jpg

So are you saying to install the MI exhaust you needed to drill a hole?

[tooter]

So are you saying to install the MI exhaust you needed to drill a hole?

Yes. One small 3/16" hole to support the twin tip...

http://i17.photobucket.com/albums/b90/compost_bin/car/IMG_6004.jpg

It almost didn't need a third point of attachment as all the weight is on the two existing hangers in the stock positions. The third one only holds the height adjustment of the tip. I just used an old piece of wire and twisted it until the tip was the right height. :wink:

[malibuguy]

The box in the back is a evap tank. Which also kills the idea of doing a twin exit like a camaro with the muffler right after the axle since its right in that location on a sedan.

There is a possible existing hole to use...but that would require welding a length of wire to a nut to drop it down into position...but thats jist asking for a future rattle headache if it were to come loose.

I can produce an alternative normal style axle-back for a very good price.

[tooter]

The box in the back is a evap tank. Which also kills the idea of doing a twin exit like a camaro with the muffler right after the axle since its right in that location on a sedan.

Thanks for the correction, guy. :smile: I didn't know what it was, and just guessed it was electronics in a plastic box which would have a melting issue if a heat source was close.

There is a possible existing hole to use...but that would require welding a length of wire to a nut to drop it down into position...but thats jist asking for a future rattle headache if it were to come loose.

The twin tip still has the normal rubber coupling on it, same as the rest of the mounting points, to cushion any motion. The wire loops from the coupling through the little hole. It feels like there is less than a pound of weight on it and only keeps the tip from sagging down.

I can produce an alternative normal style axle-back for a very good price.

I believe you could. :thumbsup:
It might not generate a large number of sales, but some would sell for sure. I boxed and weighed a stock axle back, and then went to the UPS site to estimate the maximum shipping cost from Coast to Coast. Shipping is about $35 which seems pretty reasonable for a large bulky item.

Found this pic of a really neato Yaris axle back dual exhaust on a Japanese site that might get around the emissions canister issue... :smile:

http://www.kansaiexhaust.com/images/products/thumbnail/118_20100302_11210056.jpg

[malibuguy]

You cant go off the stock axle-back weight. It weighs almost nothing since its all 18g material. Toyota definetly knew how to produce an effecient exhaust in terms of flow and weight. The entire stock exhaust weighs about 27lbs. My exhaust weighs about 10lbs more...due to 16g construction and extra resonators. The stock muffler is open inside with one baffle and a spring loaded valve. Packed mufflers/resonators weigh more.

In the long run however 16g can take a beating compared to 18g...if you look at it wrong it gets dented haha

Btw ive seen several exhausts like that one too and ive considered it

[tooter]

You cant go off the stock axle-back weight. It weighs almost nothing since its all 18g material. Toyota definetly knew how to produce an effecient exhaust in terms of flow and weight. The entire stock exhaust weighs about 27lbs. My exhaust weighs about 10lbs more...due to 16g construction and extra resonators. The stock muffler is open inside with one baffle and a spring loaded valve. Packed mufflers/resonators weigh more.

In the long run however 16g can take a beating compared to 18g...if you look at it wrong it gets dented haha

Btw ive seen several exhausts like that one too and ive considered it

I'd bet that it sounds really super, unless the left pipe is just a dummy.

I see... I had compared the stock axle back exhaust to the Micro Image MagnaFlow Center Exit setup and it was only about 2 pounds heavier.

[malibuguy]

Im thinking about producing a low cost axle-back...mandrel-bent aluminized steel with a nice tip...looking around $175-200 range. Sedans first then hatchies next.

[tooter]

There's likely a pretty decent market in that price range or even a little higher... :thumbsup:

...as everyone here eventually gets, at the very minimum, an axle back because it's such a simple and satisfying mod to make. :smile:

[malibuguy]

Ill swap my stock exhaust back onto my car soon and ill make a prototype asap

[tooter]

Yeah, just start really small with a minimal commitment to making one unit and see if it will sell. :smile:

I was happy to buy Garm's center exit hatchback exhaust because it was unique and very well designed. So if you came up with a sedan dual exhaust that no one else offers, it would likely sell at least a few. :thumbsup:

[1.5]

malibu if the center exit poses an issue, I would be interested in a standard exhaust, not dead set on center exit.

What do you think cost would be to fab a single exit on passenger side headerback exhaust?

[tooter]

Hey, you know what would be a really cool exhaust setup that nobody has?...

http://www.allfordmustangs.com/forums/attachments/2005-2010-mustang-talk/41810d1206723744-side-exhaust-2007-mustang-gt-graysideexhdetail_7194.jpg

...a side exit with a dual tip in front of the rear wheel. :thumbsup:

[1.5]

Hey, you know what would be a really cool exhaust setup that nobody has?...

http://www.allfordmustangs.com/forums/attachments/2005-2010-mustang-talk/41810d1206723744-side-exhaust-2007-mustang-gt-graysideexhdetail_7194.jpg

...a side exit with a dual tip in front of the rear wheel. :thumbsup:

agreed that would be nice, and original for a Yaris

[malibuguy]

Manifold-back i can sell you a tubing kit right now that would need to be final fitted and hangers welded to it, etc. However the manifold flange is an odd very spaces out bolt pattern...i made my flange out of 2-flanges for my exhaust.

[tooter]

Manifold-back i can sell you a tubing kit right now that would need to be final fitted and hangers welded to it, etc. However the manifold flange is an odd very spaces out bolt pattern...i made my flange out of 2-flanges for my exhaust.

It is really wide...

http://i17.photobucket.com/albums/b90/compost_bin/car/IMG_5914.jpg

I think it's so that the bolts with springs around them will have enough room to clear the donut gasket and socket.

[malibuguy]

well 1st gen 1nz had a narrower pattern that i used a regular exhaust flange with minor modification. same spring bolt set up.

[packetrace]

how much would you sell it ? would it be solder-bolt-on lol ?

I would be interested in a kit that jhave tubing, hangers and flange :) i have the sedan like yours :)

[1.5]

^^ yes what would price be for this tubing kit. Minor modding does not bother me, I planned on having a custom exhaust made anywho.

[malibuguy]

a tubing DIY kit would be approximately 200-300 range for aluminized steel, $75 more for 409ss.

I would sell it with hangers, but they would need to be bent and trimmed to fit. This allows for maximum flexability for the install. Ideally cut off your stock flange & reuse it. Unless i stumble upon a sutible solution for that.

Im doubtful demand would be enough to justify a full, bolt on kit that requires no work. I'll have to be moving a few kits a week to justify making the jigs for that.

I may have a chance to get the rear section started tomorrow if work is slow enough. If not, it wont be until next week as I will be out of town for the rest of the week.

[malibuguy]

I just made the prototype axle-back exhaust today. It sounds really good...actually impresses me for an axle-back. I drove the shit out of the car on the way home listening to it!

Its very simple and i set it up to easy for me to make sedan & hatchie kits out of the same jig. I should be able to start producing these by the end of next week.

Ill get pics and video asap!

[packetrace]

yeah we want to see :)

[tooter]

I just made the prototype axle-back exhaust today. It sounds really good...actually impresses me for an axle-back. I drove the shit out of the car on the way home listening to it!

Its very simple and i set it up to easy for me to make sedan & hatchie kits out of the same jig. I should be able to start producing these by the end of next week.

Ill get pics and video asap!

Oooh, video... how exciting! :smile:

I scroll through YouTube just listening to all of the different exhausts. It's like music. :wink:

[malibuguy]

the past few days i have been really enjoying the MBS axle-back. It sounds so good! I took it by my best friends house to show it off, and he was really surprised by its great sound for just an axle-back.

I can get it to pop & gurgle a little bit too during rev matching.

We got slammed this week at work, so I may be delayed on making the jig, but pricing is looking good...looking closer to $175+ship!

[tooter]

:needpics:





:wink:

[packetrace]

Hey malibu...the manifold back that i buy from uou..will it be compatible with this axle-back and other after market axle back ?

[malibuguy]

mostly...i use a slip connection where the flanged connection would be. Any axle-back can be quickly adapted to my exhaust by cutting the flange off & making a slip fit adapter

[malibuguy]

a teaser...
http://sphotos-a.xx.fbcdn.net/hphotos-ash4/292299_10151312119505278_2064315596_n.jpg

[1.5]

very nice and clean I need to save my pennies so I can get that piping kit.

[baseballfan416]

bump for a header back option...