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Re: Exhaust Qs! (900S with SPG exhaust)?? Posted by Justin VanAbrahams [Email] (#32) [Profile/Gallery] (more from Justin VanAbrahams) on Mon, 25 Jun 2001 05:51:20 In Reply to: Exhaust Qs! (900S with SPG exhaust)??, Taylor, Sun, 24 Jun 2001 20:24:07 Members do not see ads below this line. - Help Keep This Site Online - Signup |
As Jeff says, you're going to run into problems with the flange on the cat, and possibly the length of the cat (come to think of it). Performance gain will be slight if any (maybe 1-2hp), noise gain will probably be substantial.
My advice? Buy a turbo. HA! Just kidding...
I have a 2.5" exhaust on my '86 S. It starts at the collector, goes into a 2.5" cat, out to a 2.5" I/O Magnaflow muffler, then to the tailpipe. It's quite loud - most would be annoyed by it. Performance gain was intangible at best. I had it custom made, since adapting a Turbo exhaust to the car would have been difficult without replacing the header at the same time. You might consider saving the bits from behind the cat, and just having a new cat & collector welded in. It'll save you time and maybe money.
-Justin
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