Quote:
Originally Posted by shiftdrift
obx 4-2-1 header (better than hotshot), 3" test pipe and 3" exhaust, a real cold air intake, not just a filter. extra 25whp...............
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So basic exhaust and intake will put you just under a S13 SR HP ?
no way.
And imo, you will keep more lower end power and torque by NOT going with a 3" exhaust. you want the back pressure with a KA.
