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#2 (permalink) |
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Senior Member
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Well if you are just talking about a Catback, you wont see much gain, You need to get a race header + a good catback, either the buddy club or vibrant or DC race header.
With out it you will not produce the power that most guys with the Comptech kit are making with I/H/E. Most everyone with that set up are putting down 250+ whp. I am the only one on the board still running my S/C with the stock header and cat. I dynoed at 230 whp. Im currently running the Greddy Evo 2. Sounds great. Last edited by liquidr1; 04-27-2008 at 07:40 PM. |
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#4 (permalink) |
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Senior Member
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greddy doesnt make a header.. And you'll make more power with a bigger exhaust, i'd go 2.5 atleast the vibrant,comptech are prob the 2 quietest.. but u know that no exhaust is gonna be super quiet with a blower... And i would get a race header too.. i'd do the vibrant catted RH ..
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#6 (permalink) |
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One Goal, One Vision, Win
Join Date: Jul 2007
Location: Atlanta, GA and Manchester, England
Posts: 5,670
Robert
iTrader: 3 / 100%
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i have the catted vibrant header and LSD sedan exhaust, will be installing next weekend so will post results :)
anything less than a 2.5" will be hindering performance.. but anything will be quite loud with the SC
__________________
![]() People say BMW drivers are assholes. Maybe that's why i want one... Last edited by jrotax101; 04-27-2008 at 01:11 PM. |
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#7 (permalink) |
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Senior Member
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Vibrant and Skunk2 might offer the most gains when going FI as they are some of the biggest exhausts out for us. Using a race header without a cat will also get the most gains (Buddy Club, DC, Vibrant). Although running a catless race header and a Skunk2 70mm with a s/c would be pretty darn loud I would assume. I'd recommend a header with HFC for emissions, noise, smell reasons, but that's me.
Last edited by mako8; 04-27-2008 at 05:45 PM. |
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