Greddy Revolution RS Cat Back Exhaust Subaru WRX / STI Sedan 2011-2014 vendor_Koyo Cooling Includes 4 pistons and 4

Includes 4 pistons and 4 rings

Part #: FW-100RD

High-flow performance air filter for improved horsepower and acceleration

or vice versa

APR Front Bumper Canards help increase front down force at high speeds

Greddy Revolution RS Cat Back Exhaust Subaru WRX / STI Sedan 2011-2014 vendor_Koyo Cooling Includes 4 pistons and 4Part #: 10168101 The Revolution RS for the Subaru WRX STI sedan features full 3. 0 diameter piping for superior performance. Dyno test have shown increase in 12hp and an amazing 32ft lbs of torque. The purposeful single sided cat back layout with minimal bends produces a cost effective, light weight system. Classic GReddy styling positions the muffler and tip stylishly underneath the right side of the car while matching the profile body lines