GMPP Exhaust
GMPP Exhaust
I have a friend with a SS/SC and he wants to trade me his GMPP for my DC Sports Exhaust and i was wanderin how does the GMPP Performance exhuast sound on a 2.2 LS
turbo = less back pressure... is a must
Whats the worth of trading it. They both are about the same. IDK what difference in hp gain there are between the two. I plan on getting the Alpha turbo kit for my balt in the summer so idk if ill have to get another exhaust or not.
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