Agency Power Racing Downpipe Subaru WRX/STI 02+
The downpipe is 3 inch full stainless steel with a cast bell mouth upper section. The thich flanges ensure a tight and strong seal. The downpipe deletes both your catalytic converters and bolts to all factory style turbos. The downpipes precision welds and polished piping give the AP Racing Downpipe that cutting edge. Each downpipe includes a bung for an aftermarket air/fuel sensor as well as a bung for the factory O2 sensor.