ACT Prolite Flywheel STI (2004-2018) Wheels Invidia Divorced Catless Downpipe with

Invidia Divorced Catless Downpipe with extra O2 Bungs

- CNC machined and dynamically computer balanced for super smooth high RPM reliability

and an angled-exit muffler

Backed by ISC’s quality specifications and unbeatable warranty

ACT Prolite Flywheel STI (2004-2018) Wheels Invidia Divorced Catless Downpipe withACT 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