cam, ls1 exhaust cut out quaustion?
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I have a 02 full bolt on, cam camaro with dyno tune an it has a custom 2.5 ory on it into a 3inch then a slp 2 muffler then dump before the axel an sould good. Over winter i added some 3 inch cut out about a foot after the headers on eather side.. All is good in the sound, but it just dont seam like it pulles as hard Through the rpms till it hits 6k! i no ppl can get another 5 to 15 hp on a dyno on top end with cutouts but does it kill ur mid range hp\tq? Or is it just me?