Smooth engagement with reduced marcel for faster shift action and stock to low gear rattlePremium organic friction materials for heat tolerance, faster recovery from overheating and prevents warping of mating surfacesSpring retainers feature heat-treated wraparound spring windows that provide support and reduce stress concentrations that are common causes for failureRecommended for street and race useModified with reduced marcel for faster shift action and has steel-backed linings for higher burst strength and quicker shifting and engagementACT's Performance Street discs are available for most popular applications. These discs are modified with reduced marcel for faster shift action to complement ACT pressure plates. Performance Street discs have higher copper content friction lining for heat tolerance and steel-backed lining for greater burst strength and durability. Also, they feature top grade rivets to securely fasten the part together. The rivet design and rivet materials are carefully selected for maximum strength. 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. All Modified, Performance and many standard replacement discs are certified as meeting SFI Specification 1.1 and are legal in all racing organizations that require SFI certification.
