Per rhonda at FVD
the HP/torque gains quoted on FVD's web page are slightly understated, they could be higher but definitely not lower ... I have not put it on a dyno yet but recently I did drive an 04 S anniversary boxster with similar mileage to mine .... I don't know if there was any significant difference in power, low mid or high end.
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01 boxster black/tan- FVD exhaust and ECU tweak, K & N air filter,
de snorked, underpulley, carbon fiber rear wing, H & R lowering springs, lemans rims by victor equipment
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