Modified Sprung Street Disc by ACT 2000207 is a modified spring-centered street disc featuring premium organic friction material 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 heavy duty torsional dampening springs are stronger, in most cases, than standard springs and are provided in the best sizes and spring rates to suit the application. Modified street discs allow for quicker shifting and engagement. Quiet operation with increased strength and reliability. Features Feel: Smooth engagement, quick shifts, OE to mild gear rattle Life: Premium organic friction materials for heat tolerance, faster recovery from overheating and prevents warping of mating surfaces Quality: Spring retainers feature heat-treated wraparound spring windows that provide support and reduce stress concentrations that are common causes for failure Recommended Use: Recommended for street and occasional race use ACT Difference: Steel-backed linings for higher burst strength, reduced marcel for quicker shifts Applications 2004 – 2011 Mazda 3 GS/GX/i/Sport GX 2004 – 2009 Mazda 3 GT/S/SP23/Mazdaspeed 2009 – 2011 Mazda 3 i Touring 2006 – 2010 Mazda 5 GS/Sport/Touring Specifications Product Weight (lbs.) – 3.2 Input Shaft Diameter (Inches) – 15/16 Spline Count – 22 Disc Type – Sprung Street Disc Disc Diameter (Inches) – 8.8 Disc Diameter (mm) – 224 What\’s In The Box? 1 – Modified Sprung Street Disc Warranty ACT 12-Month Limited Warranty