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11-07-2008, 08:51 PM | #1 |
Touge Driver
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Full exhaust System for NA yaris
Hi guys,
I just wanna know what would be the best combination of doing a full exhaust system for a NA yaris. Atm, i have a bolt on muffler. I have read post saying Headers might not make too much difference. Also some of my mates told me to modify the cat or something. What do u think is the best combination piping for a NA yaris? I wanna get the most out of my NA yaris... I don't mine custom the whole thing, i just need some ideas. Cheers, Harvey |
11-07-2008, 08:53 PM | #2 |
Drives: Soon to be LFA Join Date: Oct 2008
Location: Orlando, FL
Posts: 523
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Garm ( cali yaris ) sell a nitto midpipe that would work for clearing the farts out the rear end
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11-07-2008, 10:53 PM | #3 |
Touge Driver
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11-07-2008, 11:10 PM | #4 |
Give Me Resonance
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DC 4-2-1 Header + Nitto Midpipe + Fujitsubo Wagolis = Yes ?
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11-08-2008, 02:24 AM | #5 |
ULTIMATE
Drives: 07 Yaris Turbo Join Date: May 2007
Location: Canoga Park, CA
Posts: 14,859
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^ ooh, nice
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Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific. |
11-08-2008, 10:58 AM | #6 |
Touge Driver
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if we custom the whole thing, should we only use one cat? or? get rid of the cat? or?..
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11-08-2008, 11:00 AM | #7 | |
Super Moderator
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Quote:
I still haven't seen the DC 4-2-1 yet, but IMO 4-2-1 is the way to go for the Yaris. WSCP sells the W*R 4-2-1 header in case you're interested.
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11-08-2008, 11:11 AM | #8 |
Touge Driver
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some of my friends have told me to get the 4-1 for yaris...any reason y?
if u keep u rev above 3K, 4-1 is better or 4-2-1? |
11-08-2008, 11:35 AM | #9 |
Super Moderator
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I've heard 4-1 is better for the higher range, and 4-2-1 is better for the lower/middle ranges.
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11-08-2008, 12:32 PM | #10 | |
Who said Yaris was slow?
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Quote:
In theory a 4-1 will provide a better gain and higher rpm while a 4-2-1 will provide better gains at the mid range. The problem is that by design the Yaris header is so short that I doubt there is much difference between any of the current model available. So I would tell you to choose the one that fits your budget! If you want the ultimate set up and still keep it legal for emission testing I will tell you to get a high flow cat Only one or at least remove the secondary cat leave the primary cat. You already have a bolt on muffler so you just need the mid pipe. If you can get mandrel bent tubing go for 2" pipe if you can't get it, then go for 2.25" pipe. If you want it civil, snap a round mufller/resonator in the middle in place of the OE resonator and ou are good to go! And the header will make some difference as long as you work out the rest of the muffler. Not much gain by mating a header with a stock exhaust. |
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11-08-2008, 12:58 PM | #11 | |
Super Moderator
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Quote:
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11-08-2008, 08:25 PM | #12 | |
1NZ-FE
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Quote:
i'm asking cuz i wanna do a mod almost like this |
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11-09-2008, 01:19 AM | #13 | |
Who said Yaris was slow?
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Quote:
Both models come with 2 cat converters. First one just after the exhaust manifold and the other one a few inches after. The car has 2 sensors on the exhaust the first one and the most important is in the header. You can not mess with that one. Then there is a second sensor right after the first cat. The function of that one is monitoring the functionality of the Primary (first) cat. That one can be easily tricked if you plan to go catless. There is no sensors after the second cat. Therefore you can remove that one if you want and your car won't even notice it. |
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11-09-2008, 04:56 PM | #14 | |
1NZ-FE
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Quote:
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11-09-2008, 05:29 PM | #15 |
Don't drive it, RALLY it!
Drives: 1999 echo PRC rally car Join Date: Oct 2008
Location: Joyner, Brisbane
Posts: 321
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11-09-2008, 11:39 PM | #16 |
Who said Yaris was slow?
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Yes. You just need to unplug the sensor on the stock exhaust manifold. Take the manifold out and install the header and finally put te sensor back on the header. It should have a bung for the sensor. Pretty simple
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11-11-2008, 08:15 AM | #17 |
Touge Driver
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11-11-2008, 03:21 PM | #18 |
Don't drive it, RALLY it!
Drives: 1999 echo PRC rally car Join Date: Oct 2008
Location: Joyner, Brisbane
Posts: 321
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Do your stock headers look like these from a 1.3 litre Echo?
Or like these from a 1.5 litre Echo? A guy on Ozecho has swapped the 1.5 litre manifold (the one with the longer primaries) onto his 1.3 litre and is happy with the improvement. Last edited by rob323; 11-11-2008 at 03:52 PM. |
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