Rob1799 Posted August 14, 2004 Share Posted August 14, 2004 I just purchased the HKS exhust for my 01 GS 430. I heard it had a nice sound, I have to put it on. They said 5 HP gains... I am wondering if anyone has put on a FULL exhust system and does it make a signifigant difference? I called up Swift (SRT), got the intake and asked them... They said they only recommend the Greddy cat back system (no longer available) for their $30k twin turbo upgrades, otherwise it is not worth it. Does anyone care to dispute that? Anyone ever see an aftermarket y-pipe and manifold back piping sold for this car? If so by whom please... -rob Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.