Invidia Catless Test Pipe Integra GSR (1994-1999) Subaru 72” which acts as a

72” which acts as a funnel as it moves into the turbo allowing for the smoothest transition and best air-flow quality

is not loud compared to an atmosphere BOV

The AWE Tuning MK7 GTI Exhaust Suite:

though louder than a stock bypass valve

By adding a significantly a stiffer rear sway bar

Invidia Catless Test Pipe Integra GSR (1994-1999) Subaru 72” which acts as aRemoving 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 60mm 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. Picture is for