Advanced Clutch Technology (ACT) is a leader in high-performance drivetrain solutions, engineering cutting-edge clutch kits and flywheels for racing, street, and off-road applications. With a commitment to precision, durability, and innovation, ACT delivers superior torque capacity, faster shifts, and unbeatable reliability for enthusiasts and professionals alike. Whether you're pushing limits on the track or enhancing street performance, ACT's products are designed to handle extreme power while maintaining smooth engagement. Trusted by top racers and tuners worldwide, ACT sets the standard for high-performance clutch systems.

3000503 is a performance street disc and the most popular disc purchased. It features premium organic materials with high copper content for better heat transfer. Performance street discs allow for quicker shifting and smooth engagement. These discs feature a reduced marcel for faster shift action to complement ACT pressure plates. ACT spring-centered assemblies use bushings and cone springs similar to factory clutch discs. This creates frictional dampening, which improves clutch life and reduces noise. Quiet operation with increased strength and reliability.

Installation Instructions

Warranty

This Part Fits:

Year	Make	Model	Submodel
2004-2014	Subaru	Impreza	WRX STI
2007,2011-2014	Subaru	Impreza	WRX STI Limited
2010	Subaru	Impreza	WRX STI Special Edition
2007-2009	Subaru	Legacy	GT spec.B
2015-2021	Subaru	WRX STI	Base
2015	Subaru	WRX STI	Launch Edition
2015-2021	Subaru	WRX STI	Limited
2019	Subaru	WRX STI	S209
2016	Subaru	WRX STI	Series.HyperBlue
2018	Subaru	WRX STI	Type RA