and I know all this for sure BTW, my car has a full custom exhaust from the engine back (tuned for high RPM racing) and a shortened "cai" (its not but is, very trick to actually categorized, but its custom). and combined they probably give me 30hp to the crank, maybe 20 to the wheels. I could make 30-35hp more to the wheels (than stock) with this setup if added the hondata kpro engine mangagement chip to my computer and tuned it right. but that can extend the rev limiter to 8000rpm (instead of 6700), dial in the most power from cam angle, ignition timing, vtec activation, fuel additions.....
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