ACT Performance Street Sprung Disc (07-11 Mazdaspeed 3)

ACT Performance Street Sprung Disc (07-11 Mazdaspeed 3) Smooth engagement, quicker shifts, OE to mild gear rattle; Premium organic composite friction blended for high heat tolerance, increased burst strength, faster recovery from overheating and less wear of mating surfaces; Spring retainers feature heat-treated wraparound spring windows that provide support and reduce stress concentrations that are common causes for failure; Recommended for street and race use; Steel-backed linings for higher burst strength, reduced marcel for quicker shifts Features Product Weight (lbs.): 3.4 Disc Material: Organic Diameter (Inches): 9.4 Diameter (Millimeters): 240 SFI: 1.1 Benefits Smooth engagement, quicker shifts, OE to mild gear rattle Steel-backed linings for higher burst strength, reduced marcel for quicker shifts Spring retainers feature heat-treated wraparound spring windows that provide support and reduce stress concentrations that are common causes for failure Premium organic composit