ACT Prolite Flywheel STI (2004-2018) Wheels - Durable powder coated finish

- Durable powder coated finish

and an angled-exit muffler

The Carbon Fiber Titanium Hi-Power Catback for the 2002-2007 WRX and STI has all the features of the regular exhaust: 75mm piping

R58 2011-up Coupe Cooper S

The included application-specific CNC-machined aluminum sandwich plate has been designed to allow proper clearance of the stock oil filter

ACT Prolite Flywheel STI (2004-2018) Wheels - Durable powder coated finishACT flywheels for the Subaru STI are lighter, stronger and safer than stock cast flywheels to meet the needs of both enthusiast and hard core racer. Material is properly distributed for maximum strength, lower inertia, good heat tolerance and rigidity. Precision machined threads will not easily strip out or get damaged like those found on aluminum flywheels. ACT engineers XACT flywheels using the latest CAD and FEA (finite element analysis) software