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07-01-2007, 11:10 AM | #1 |
37HSSV
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Are We Still Stuck With the 4-1 Headers?
Ok, I decided to go back into the archives, was looking for Headers... now... Do we actually have a 4-2-1 header yet, or are we still stuck with Meagan Racing 4-1 Header, or did Leo over at Weapons R finally make that 4-2-1 Header he was to make like almost 6 months back.
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07 Toyota Yaris Hatchback -sold- 11 Mazdaspeed 3 -SRI/TIP, 3 inch TBI, Custom FMIC, Tuned by Cobb Accessport, HKS ssq2 BOV, Upgraded HPFP- Clean stock look... Killer performance. |
07-01-2007, 11:55 AM | #2 |
Super Moderator
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Unfortunately, 4-2-1 headers are still not available for the Yaris. NST is supposedly working together with DME to get such a header done. This has been on the table for a while, however, so I don't know if any progress has been made so far.
Also, Chris07LB gave his stock header to the Weapon-R guys for the same purpose, but it doesn't seem that they're any closer to getting it done.
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07-02-2007, 01:11 AM | #3 |
Drives: 2006 Yaris Join Date: Dec 2006
Location: USA
Posts: 203
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No 4-2-1 header for the Yaris yet.
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It's a red yaris |
07-02-2007, 12:09 PM | #4 |
Drives: '07 3 Door Yaris of Doom! Join Date: Dec 2006
Location: Miller Motorsports Park
Posts: 88
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Until someone come out with a whole header/catted pipe replacement for the Yaris, we will never get a 4-2-1 header, there just isn't enough room. Look at the two examples below, the first one is a TRD Yaris header, the second is for an Acura RSX. As you can see, we would need far more length to allow for a 4-2-1.
TRD 1NZ-FE Exhaust Manifold TODA K20A Exhaust Manifold The advantage of building a "real" Yaris header like the one for the K20A would be the ability to make a true cat back exhaust, and none of the funky bent up over the axle nonsense Toyota gave, it could be straight (well straighter). The problem comes in that a Yaris exhaust system needed to support a 4-2-1 would be illegal. You can not replace the catalytic converter on a car less than 10 years old. There are actual high flow units available that work just as well as the OEM converters, but federal law prohibits converter replacement. The few guys actually racing the Yaris could just leave the cat out, and run as free flowing as possible. The guys NOT living in California, could use an aftermarket high flow cat, pass emissions and hope that no one smart enough to notice is looking at the modified exhaust.
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Last edited by Biggie™; 07-02-2007 at 12:23 PM. |
07-02-2007, 12:26 PM | #5 |
Drives: NST CARS: S13 AE86 ANT10 AW11 Join Date: Dec 2006
Location: USA
Posts: 1,097
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^^^ Excellent, excellent reply sir!!! ^^^
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07-02-2007, 01:37 PM | #6 |
Drives: '07 3 Door Yaris of Doom! Join Date: Dec 2006
Location: Miller Motorsports Park
Posts: 88
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I was thinking of making a Yaris race header that just exited out behind the passenger front tire. Strangely, it would look very much like a RWD header when viewed out of the car.
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07-02-2007, 11:26 PM | #7 |
Drives: yaris Join Date: Mar 2007
Location: HK
Posts: 14
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07-03-2007, 01:11 AM | #8 | |
Drives: '07 3 Door Yaris of Doom! Join Date: Dec 2006
Location: Miller Motorsports Park
Posts: 88
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Quote:
But there's a problem. On a proper 4-2-1 header design, the length of the primaries(tubes coming of the head) need to be far longer then they can be with the current Yaris design. With the limited distance/available space the headers were given, a 4-2-1 header will more than likely not be of as much benefit when compared to a 4-1 OEM/TRD style header. Just remember... It isn't a coincidence that both the stock Toyota header and the TRD performance header are a 4-1 design.
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07-03-2007, 01:45 PM | #9 | |
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07-03-2007, 07:04 PM | #10 |
I agree, if you are going to go for the header why not go for the whole shebang? I know I personally want a whole system all the way back even if I have to weld it myself(eventually) I'd prefer to buy if it doesn't cost a quarter of the value of the car. I want to get the most out of this engine without boost since the seals wont hold up over the long haul or so I've read. That Blitz compressor you can turn off is awfully tempting though....
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07-04-2007, 06:03 PM | #11 |
JOE GIRTH
Drives: YARIS 3DOOR Join Date: Feb 2007
Location: ROCKLAND TOYOTA/SCION
Posts: 369
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so right now which header is the best for the money???
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http://www.carid.com/toyota-accessories/ site has a FEW interesting yaris items..... |
07-04-2007, 09:57 PM | #12 |
stock
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07-05-2007, 03:38 AM | #13 |
Drives: '07 3 Door Yaris of Doom! Join Date: Dec 2006
Location: Miller Motorsports Park
Posts: 88
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I'm sure I can get a properly designed 4-2-1 header back performance catted exhaust system produced if there is enough demand. But really, how many of you guys outside of Cali(there is NO way to get this CARB approved) would shell out the $800+ to get an extra 10 hp from your $11,000 106 hp econo-box?
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07-05-2007, 03:52 AM | #14 |
Drives: 2007 Yaris Hatchback Join Date: May 2007
Location: Berkeley, CA
Posts: 243
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I personally bought the Yaris to put money into... which sounds silly, but it's an affordable, excellent micro-tuner. I would spend $700 on full exhaust, hell, 2 carbon canisters for my Ducati cost $850.
Anyhow, there might be a 4-2-1 solution in the near future... but a question I have is how many HP and ft/lbs. of torque would make it worth buying? Dollar per HP, nothing beats a turbo kit.
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Dave V- Creator-Vanderkitten- Clothing for Women Who Kick Ass! Many thanks to our sponsors: Weapon-R http://weapon-r.com Megan Racing http://www.meganracing.com Les Schwab Tires http://www.lesschwab.com 317 graphics http://www.317graphics.com |
07-05-2007, 04:04 AM | #15 |
Drives: '07 3 Door Yaris of Doom! Join Date: Dec 2006
Location: Miller Motorsports Park
Posts: 88
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Nothing will compare dollar to dollar with a turbo's ability to produce power. That being said, we still need a better exhaust than the one we were given that wraps around the torsion bar 5 times.
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07-05-2007, 02:23 PM | #16 |
Drives: Yaris Join Date: Jun 2007
Location: Pittsburgh
Posts: 136
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I'd buy one.
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07-05-2007, 02:35 PM | #17 |
Drives: 07' Yaris Liftback - silver Join Date: May 2006
Location: Springfield, Mass
Posts: 475
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if you got a turbo you would need a new header anyways...
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07-05-2007, 02:36 PM | #18 | |
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