The bhp gains from fitting an exhaust can be absolutely anything.It depends on your exact setup. I cannot imagine the standard exhaust would let you run much more power than 175bhp at the flywheel. If you are not intending on increasing your injector size and changing your management there is not really much point in going 3 inch. 2 3/4" will supply enough air flow. Unless you just want to make lots and lots of noise. ...
Silvia engineering do not exist anymore.
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Originally Posted by s13eater
i wished my cams cost only £130 each, i must have c*nt wrote on my head  |
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