X-Force SS Cat Back Exhaust Subaru WRX 2008-2010 Sedan X-Force

Part #: XFO-ES-SW20-VMK-CBS

X-Force offers a range of uniquely engineered and designed stainless steel bolt on exhaust systems. These exhaust systems bolt directly to existing mounting points making installation easy. They are built to perform well, with materials designed for longevity and they look great! The unique design increases power throughout the rev range, while providing a great engine audio note to make it roar!

VAREX mufflers combine both the design technology of the stock muffler and the performance muffler into one single compact unit. A sophisticated butterfly valve mechanism is implemented to redirect the exhaust gas flow and vary between the two. For higher sound level, the exhaust flows are directed through the opening path and produces maximum power with a robust sound level (or the “sports car note”) and near-zero resistance.

Whilst for lower sound level, the exhaust flows are directed through the chambered path (similar design with the stock muffler), and produces minimum sound level that gives you the best in-car comfort. Angle of the valve is also controllable, which can be adjusted to stop at various points between sports mode and silence mode. This gives you further freedom to set the optimal sound level according to your desired preference.

Note: Are you using a stock j pipe or downpipe? If yes, the GrimmSpeed Subaru Stock DP to Aftermarket 3 in. Catback Adapter p/n 077046, is required.