go with the off- road pipe if you want a little more power and sound I installed headers and the off-road pipe at the same time so I cant tell you what each one did in the power or the sound deprt. but I can tell you I can feel a big diff in the upper ranges in all gears but the most in 3rd and 4th
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RUN IT STAIGHT AND RUN IT HARD
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Novi 2000
60' 1.46
1/4 10.67
mph 126.5
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