The Competition Clutch Stage 4 - Strip Series 1620 Clutch Kit, available with a double spring, six rivet carriage is good for ease of gear transition with higher horsepower. This disc complimented by a performance pressure plate provides 250% increase in torque capacity. The 1620 Series kit includes a performance pressure plate, a six puck high torque sprung disc with Ceramic buttons, all applicable bearings, and the appropriate alignment tool. PartNumber : comp10045-1620 Description : Strip Series 1620 Clutch Kit 1999 Mazda Miata 10th Anniversary L4.1839cc Drivetrain::Clutch Kits - Single 1994-1997 Mazda Miata Base L4.1839cc Drivetrain::Clutch Kits - Single 1999-2005 Mazda Miata Base L4.1839cc Drivetrain::Clutch Kits - Single 2000-2005 Mazda Miata LS L4.1839cc Drivetrain::Clutch Kits - Single 1994-1997 Mazda Miata M Edition L4.1839cc Drivetrain::Clutch Kits - Single 2004-2005 Mazda Miata Mazdaspeed L4.1839cc Drivetrain::Clutch Kits - Single 2000-2003 Mazda Miata SE L4.1839cc Drivetrain::Clutch Kits - Single 2003 Mazda Miata Shinsen L4.1839cc Drivetrain::Clutch Kits - Single 1997 Mazda Miata STO L4.1839cc Drivetrain::Clutch Kits - Single