TurboXS has a Turboback exhaust for 2002-2007 Subaru WRX and STI owners looking for a complete free-flowing exhaust solution that runs from the turbo all the way to the bumper. The Turbo XS Titanium Tip Turboback exhaust for the Subaru WRX/STI starts with a 4" bellmouth downpipe, tapering to 3" and bolting into a 3" high-flow catalyst, then into a 3" midpipe, and ending in a 3" inner diameter N1 style muffler with a titanium tip, making a complete post-turbo exhaust solution. The large piping diameter on the Turbo XS Turboback make it one of the best at adding power on the market.
Subaru STI 2004-2007
Subaru WRX 2002-2007
These are the latest version of the 02-07 design (part number WS02-) and are NOT compatible with the older style TurboXS exhaust parts (part number WS-).