02-07 Subaru Impreza WRX STI Catback Muffler Exhaust System 02 03 04 05 06 07
This performance cat-back exhaust system use 3" diameter pipe which is larger than the stock piping which easily gain more horsepower, faster response, and optimize torque. Mandrel-bent turns allow the exhaust gas to exit with as little back pressure as possible. The muffler included in these catback exhaust is glasspack to reduce back pressure.  Also, with its deep throaty tone, it echoes its racing lineage.Buyer will receive same product in the picture.