Standard Muffler Turboback Exhaust
Designed for WRX & STI owners that want a high-flowing system with less noise and a subdued look, the Turbo XS standard muffler turboback offers performance and flow with less noise. The Turbo XS Standard Turboback features Turbo XS's 4" bellmouth downpipe which tapers to 3" into a 3" high-flow cat or 3" catless race pipe, then runs into a 3" midpipe and terminates in a 3" diameter oval muffler with a rolled tip. This is an excellent system for WRX & STI owners looking for a complete after-turbo exhaust solution, but don't want the noise of the RFL system and want to ditch the stock muffler as well.
For WRX & STI owners looking to keep their stock muffler, or use a different axle-back, the Turbo XS Stealthback is the exhaust for you. This system includes Turbo XS's 4" bellmouth downpipe, which tapers to 3" into a 3" high-flow cat (or racepipe in the catless version), and then into a 3" midpipe. Turbo XS's cat to downpipe connection features an OEM style ball-and-socket design with a donut gasket, to allow exhaust movement while maintaining a tight seal.
In addition, the Turbo XS midpipe is full 3" diameter, but has a unique rear flange that will either allow you to install a stock-type 2.5" diameter muffler, or a full 3" rear muffler like the Turbo XS RFL-TI. The Turbo XS WRX & STi Stealthback exhaust is also available in a catless version, which includes a Turbo XS catless racepipe instead of a high-flow catalytic converter.