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Got a question about back perrsure

1616 Views 0 Replies 1 Participant Last post by  NySwat
Wahtz sup g6 FAns!

I got a question right now im car is in the shop getting a custom made forward exhust pipes dual! and ahve a vector tune, Kn Intake and tcm tune! With a 3.5 engine 4 speeder tranny! g6 2007 pontiac g6! no i wonder how much horsepower in all you think i would have and how fast would the car be ????? can anyone help me with this???

And can back perrsure Slow down a car? well to much back Perrsure??? thx
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