S.P.E.C., Inc Clutches and Flywheels introduces billet flywheels and seven high performance clutch stages for the 2006-2007 Subaru WRX.  Made from high carbon steel or specially treated aircraft aluminum for superior rotational integrity and warp resistance, the SPEC billet flywheels feature a hardened replaceable ring gear, high strength racing bolt kit and SFI certification.   SPEC flywheels are manufactured to an industry leading .001 inch.

The billet steel units provide desired momentum for street, drag and large turbo applications, but weigh less than stock for greater reliability and noticeable horsepower gains.  The aluminum flywheels are lighter for better performance at road race/Time Attack and autocross events.

The clutch kits include a high clamp load, quick release pressure plate (and an option for a SPEC Super Clamp plate), corresponding stage disc, bearings and alignment tool.   With seven stages and an additional pressure plate option, SPEC can provide a wide range of drivability and capacity options.