Why do the exhaust. My Stillen intake gave me 20 RWHP.
With no other mod's It was the first one i did. Base line as 264. with inake 284. +20 rwhp.
It sounds great and it works. It produces then most rwhp per dollar invested in the car.
Do the Berk cats next. Great rwhp for the money spent. Save the exhaust for last as it cost the most.
Z
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 12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015.
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