1999-2004 Porsche 911 Perf Street Rigid Disc by ACT Smooth engagement, quicker shifts, increased gear rattle; Premium organic composite friction blended for high heat tolerance, increased burst strength, faster recovery from overheating and less wear of mating surfaces, rigid design may increase spline wear; Chromoly hub is heat-treated for strength and durability; Recommended for high horsepower street or race use; Steel-backed linings for higher burst strength, reduced marcel for quicker shifts 3001302 is a street rigid disc featuring premium organic materials with high copper content for better heat transfer and steel-backed lining for greater burst strength and durability. These discs are modified with reduced marcel for faster shift action to complement ACT pressure plates. The chrome-moly hub is heat-treated for strength and durability. Rivet design and materials are carefully selected for maximum strength. Lightweight, solid-hub design allows for quicker shifting and engagement. ACTs street rigid-hub discs provide race-proven performance with street manageability. Features Product Weight (lbs.): 2.4 Disc Material: Organic Diameter (Inches): 9.4 Diameter (Millimeters): 240 SFI: 1.1 Benefits Smooth engagement, quicker shifts, increased gear rattle Premium organic composite friction blended for high heat tolerance, increased burst strength, faster recovery from overheating and less wear of mating surfaces, rigid design may increase spline wear Chromoly hub is heat-treated for strength and durability Steel-backed linings for higher burst strength, reduced marcel for quicker shifts Applications 1999-2004 Porsche 911 What\’s In The Box? 1 – ACT Perf Street Rigid Disc Warranty Manufacturer Standard Warranty