Downpipe?
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Downpipe?
I have decided that my next mod is going to be a downpipe but i would like to know first, (1) which downpipe has the best performence? (2) which has the best fitment? (3) and how much of a difference will i feel on my ass dyno?
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R.I.P. Brian Nichols 02/07/1989-11/24/2008
R.I.P. Brian Nichols 02/07/1989-11/24/2008
i say just get the helix up/dp combo from gruppe-s ... thats what i would do. But if i had unlimited money i would prolly get Perrin up/dp.. .
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I was thinking about getting helix from the start, but i just wanted to know from somebody who knows from experiance.
I was also looking at perrin.
I was also looking at perrin.
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R.I.P. Brian Nichols 02/07/1989-11/24/2008
R.I.P. Brian Nichols 02/07/1989-11/24/2008
Last edited by JonLGT; 01-07-2005 at 03:25 AM.
Turbo XS 4 1/2 d/p. and on the dyno i dont think any other turbo back came close. Its a perfect fitment, however the oem heatshield will not work.
Turbo xs bellmouth 4inch
3inch bellmouth, hexil,aps,perrin, exct all also good choices.
Turbo xs bellmouth 4inch
3inch bellmouth, hexil,aps,perrin, exct all also good choices.
I have the Helix v2 downpipe and I gotta say that I love it. It has a great finish and you can really tell its a quality product. It also has a sensor bung so you can plug maybe for EGT [although I think I would go for the hottest cylinder; probably #4 on the exhaust manifold/header].
My buddy has an O2WRX also with turbo, exhaust, reflash, full exhaust including headers coupled with the Perin, but he has a hairline crack on the uppip- to-Turbo flange I believe.
Go with the Helix up-pipe, because it has that sweet flex portion.
Oh and one more thing, I don't know necessarily how good or bad it is, but DC Sports makes a comparable one to the Helix up-pipe for relatively cheap - around $110 on eBay.
http://cgi.ebay.com/ebaymotors/ws/eB...category=33742
Hope all this helps.
My buddy has an O2WRX also with turbo, exhaust, reflash, full exhaust including headers coupled with the Perin, but he has a hairline crack on the uppip- to-Turbo flange I believe.
Go with the Helix up-pipe, because it has that sweet flex portion.
Oh and one more thing, I don't know necessarily how good or bad it is, but DC Sports makes a comparable one to the Helix up-pipe for relatively cheap - around $110 on eBay.
http://cgi.ebay.com/ebaymotors/ws/eB...category=33742
Hope all this helps.
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Just an easy rider on 4 and by 2...
Just an easy rider on 4 and by 2...
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I still dont know which one i should get. What is the difference between the bellmouth and the Perrin where the wastegate has a pipe that meets more toward the middle.
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R.I.P. Brian Nichols 02/07/1989-11/24/2008
R.I.P. Brian Nichols 02/07/1989-11/24/2008
http://forums.nasioc.com/forums/show...hreadid=445812
Thats all in info you need
All you new Subaru guys need to get registered into Nasioc, that is one of the best subaru sites out there.
Thats all in info you need
All you new Subaru guys need to get registered into Nasioc, that is one of the best subaru sites out there.
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