|
04-25-2012, 01:16 PM | #1 |
play every day
Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012
Location: Los Angeles
Posts: 1,961
|
newbie exhaust question...
Has anyone here installed a Weapon R exhaust header on a newer year Yaris than 07-08? I'd like to put one on my 2012, but obviously don't want to order something that won't fit. Thanks in advance.
|
04-25-2012, 02:12 PM | #2 |
Drives: 2010 black yaris Join Date: Oct 2010
Location: savannah, ga
Posts: 2,868
|
check this thread out. may help you. from what people are saying, yes, it does fit
http://www.yarisworld.com/forums/showthread.php?t=37386
__________________
-Derrick- "Racing is important to men who do it well. When you're racing... It's life. Anything that happens before or after, is just waiting." |
04-25-2012, 05:32 PM | #3 |
play every day
Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012
Location: Los Angeles
Posts: 1,961
|
Well, it looks like I'll soon find out. Went ahead and ordered a Weapon R...
...and if it takes some tweaking to make it fit, so be it. I specifically wanted the higher torque 4-2-1 Tri-Y design because its power gains are at low rpms, and I don't care about any potential power losses at the top end because in normal driving I never use it anyways. I read the interesting archived exchanges with Leo from years ago and found them to be very entertaining... and hope that by how the kinks have all been ironed out. |
04-25-2012, 05:43 PM | #4 |
Only Happy When it Rains
|
it would be awesome if you could do a dyno before and after especially on the low end, as in 2k rpms and up, where we would normally drive, to see if it really gets the low end.
__________________
Colin Chapman disciple |
04-25-2012, 05:58 PM | #5 |
Drives: red bare bone yaris hb 3dr Join Date: May 2009
Location: columbus
Posts: 1,022
|
I think we have the same engine ... So I don't think it'll be a problem fitting the weapon t header to your 12 yarii .
I have the same header on my 08, had to trim the pipe a little to fit onto the nitto midpipe. And since you have a new car , you can use the same donut gasket from the stock header onto the new one ... |
04-25-2012, 06:21 PM | #6 |
play every day
Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012
Location: Los Angeles
Posts: 1,961
|
The Weapon R website only lists it as only fitting 07-08, so yours fitting makes sense.
I contacted Weapon R and they couldn't say whether or not there were any changes in later years that made their header uninstallable. I also combed the internet for any information I could find, and it looks like no one has reported installing this particular header on any Yaris newer than 08... so I'll be the first. You're right about the gasket. It should be pristine as the car only has a little over 100 miles on it. I want to change out the manifold before everything gets cooked and rusted into place. |
04-25-2012, 06:27 PM | #7 | |
play every day
Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012
Location: Los Angeles
Posts: 1,961
|
Quote:
I did happen to find a pretty good deal on the header. Got the Weapon R stainless shorty 4-2-1 header from Bean Garage in Florida for $209, no sales tax, and free shipping. I really like how it's designed. The firing order is 1-3-4-2 so each successive cylinder fires alternately in each half of the split header before combining in the main collector. the theory is that the pulse of the preceeding cylinder helps to scavenge the exhaust of the next cylinder to fire in the paired off tubes. Tri Y is a very old exhaust design and I believe that it has merit for specifically how I want to use the car. |
|
04-26-2012, 01:16 AM | #8 |
Drives: 2007 Toyota Yaris Join Date: Mar 2012
Location: Portland, Or
Posts: 9
|
Will it change the sound of the exhaust? Or is it just for torque? Cause it sounds like it's what I need, but I don't want a loud exhaust, I like how quiet the car is
|
04-26-2012, 01:59 AM | #9 |
play every day
Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012
Location: Los Angeles
Posts: 1,961
|
It's just for increased low end torque and better mileage and shouldn't make the exhaust any louder because the rest of the exhaust system remains totally stock. It's the cats and mufflers that absorb the sound.
I should get the header in about a week and will be happy to share info on how the installation goes, with pictures. :) |
04-26-2012, 04:40 AM | #10 |
Drives: 2010 black yaris Join Date: Oct 2010
Location: savannah, ga
Posts: 2,868
|
what? I ran my car less then 100 miles at an autocross event the weekend I bought my car.. at least 1 autocross event every month after that.. 30k miles later.. still runs like I just bought her.. These engines can take a beating..
__________________
-Derrick- "Racing is important to men who do it well. When you're racing... It's life. Anything that happens before or after, is just waiting." |
04-26-2012, 04:53 AM | #11 |
Drives: 2011 yaris Join Date: Mar 2012
Location: florida
Posts: 73
|
I wonder if the stock exhaust will thwart the header gains? This is the main reason I havent looked at headers yet. I figure to optimize, you need a larger bore exhaust to help the header move air.
|
04-26-2012, 10:39 AM | #12 |
play every day
Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012
Location: Los Angeles
Posts: 1,961
|
I wouldn't argue over your point of how rugged the little 1.5 engines are, so it's just a difference of how we each use our vehicles. My approach is to follow the advice in the Owner's Manual.
|
04-26-2012, 10:52 AM | #13 | ||
play every day
Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012
Location: Los Angeles
Posts: 1,961
|
Quote:
Quote:
|
||
04-26-2012, 11:06 AM | #14 |
Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008
Location: Georgetown, Ontario, Canada
Posts: 5,741
|
Don't know about the Weapon R, but people have reported louder in cabin exhaust sound with the DC.
__________________
|
04-26-2012, 11:22 AM | #15 |
Drives: 2010 black yaris Join Date: Oct 2010
Location: savannah, ga
Posts: 2,868
|
agreed
__________________
-Derrick- "Racing is important to men who do it well. When you're racing... It's life. Anything that happens before or after, is just waiting." |
04-26-2012, 11:26 AM | #16 | |
play every day
Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012
Location: Los Angeles
Posts: 1,961
|
Quote:
I put headers on my Tacoma and it has this strange kind of harmonic hollow metallic whining sound when you step on the gas that's really cool. Last edited by tooter; 04-26-2012 at 06:37 PM. |
|
04-26-2012, 03:06 PM | #17 |
Only Happy When it Rains
|
ok then keep great track of your gas mileage. People have reported 1-2 mpg increases with the aFe intake from micro image.
__________________
Colin Chapman disciple |
04-26-2012, 05:13 PM | #18 |
Drives: 2010 Prius, 2007 Yaris Sedan Join Date: Oct 2009
Location: Ocala Florida
Posts: 368
|
That sounds like a great option. I was looking into the DC, and Megan headers, but I'm looking for more low end also, I don't really care about top end power. Let us know how it goes after install :-)
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Newbie with an exhaust leak on his '06 Yaris | ToYarta | DIY / Maintenance / Service | 49 | 01-03-2019 12:50 PM |
NEED ENGINE CHECK LIGHT CODE LIST | Attitude | Forced Induction Forum | 12 | 04-11-2011 06:38 PM |
Enkei's and Dunlops + Medalion Touring Exhaust | 2manywheels | Items for Sale by private party | 40 | 04-04-2011 05:01 PM |
))) new TS exhaust question ((( | aucorium | Performance Modifications | 4 | 03-29-2010 01:21 AM |
does BACK-PRESSURE increase MPG vs straight thru... | marcus | Fuel Economy Forum | 25 | 05-03-2009 09:23 PM |