[DanK]

Originally Posted by whiplash306

These Machs seem to be a bit finicky when it comes to mods, huh? Gone are the Fox body days of just throwin' on an exhaust system, screw any unnecessary tuning and enjoy an immediate hp/tq gain. Anyhow, my favorite sounding exhaust is the MAC catback. Does anyone have any info on that? Will there be a loss of hp/tq downlow if I install a MAC catLESS prochamber and MAC catback? Will that cause my motor to lean out? From anyone who knows, what are your thoughts on this setup? Also, does this car prefer 2 1/2" exhaust diameter or more?

Not from personal experience, but I've been researching the Pro-Chamber the past couple days and there is a little low end loss but you get it back at higher rpms. Ideally at near stock hp levels I'd say a mandrel bent 2 1/4" (not available to my knowledge) to 2 1/2". Over 450hp they say you can get gains from 3" diameter.