I have a pacesetter cat back and was wondering when I went turbo if I would need to get a 3in exhuast? Thanks

99GSX Auto 14b@17psi 13.345@102mph

2.5" is enough.

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'95 Eclipse TurboGS (garage deco)
'95 TSi AWD (restoring a survivor)
'97 Talon ESi-T (poor impulse control)
'99 Eclipse RS-T (daily beater)
'13 Evo X (mostly stock)
'17 Sienna (Middle Aged Dad Mobile)



Factory Service Manuals: http://nawdu.de/files/

There are some 12 second cars using 2.5"

Dave
05 Ford F150 SuperCrew FX4

just curiuos, an exhaust system for a na gs/rs should bolt right on to a gst, right? gsx might be a little different?

www.artexmusic.com

97' grey gs/Greddy EVO catback/Greddy header/AEM cai/afx udp/dropped on 2" sprints

Correct, but the stock muffler would choke it pretty good. You probably couldn't get more than a few psi of boost.

An aftermarket 2.5" catback designed for an RS/GS would bolt right up to a GS-T with no problems.

well i just recently installed a custom 3" exhaust w/ no cat, and the same revolution muffler and i love it! i have way better power gains especially at the top end. it's not raspy and sounds a lot better than when it was stock piping. i told the shop to add a resonator so it could quite it down a bit. the whole job was awesome and it was done for $165. sweet deal.