2000-2009 Honda S2000 Invidia Test Pipe 70mm Test Pipe w/CEL Fix
Removing restriction from your exhaust system is the key to added
performance. Increasing piping size effectively does this, but with the
stock catalytic converter in place you are still loosing horsepower.
Invidia eliminated this with their catless test pipe. The test pipes are
60 or 70mm and are constructed of stainless steel. These pieces will
finish off your exhaust system nicely and free up every last bit of
power from your motor. You can also opt for their test pipe with CEL fix
which will disable the check engine light you will get from running
this pipe.