The GM9-SPSS pairs an ACT Sport pressure plate with ACT's most popular Performance Street disc, sized for the LS1-equipped Camaro/Firebird/Corvette/GTO platform. The Sport pressure plate uses the same exclusive diaphragm design as ACT's other pressure plates for a moderate clamp load upgrade over stock, with a four-stage heat-treated diaphragm and precision-stamped cover. The Performance Street disc uses premium organic friction material with high copper content and a steel-backed lining, with reduced marcel for faster, quieter shift action.
Installation Instructions
Warranty
Specifications:
- Pressure plate: ACT Sport, moderate clamp load increase over stock for a street-friendly upgrade
- Disc: ACT Performance Street, organic friction material with high copper content
- Steel-backed lining for greater burst strength and durability
- Reduced marcel for faster shift action and quiet operation
- Backed by ACT's one-year warranty
- Part Number: GM9-SPSS
Vehicle Applications:
- 1998, 1999, 2000, 2001, 2002 Chevrolet Camaro Z28
- 1998, 1999, 2000, 2001, 2002 Chevrolet Camaro Z28 SS
- 2003 Chevrolet Corvette 50th Anniversary Edition
- 2003 Chevrolet Corvette 50th Anniversary Edition Pace Car
- 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Chevrolet Corvette Base
- 2010, 2011, 2012, 2013 Chevrolet Corvette Grand Sport
- 1998 Chevrolet Corvette Indianapolis 500 Pace Car
- 2001, 2002, 2003, 2004 Chevrolet Corvette Z06
- 1998, 1999, 2000, 2001, 2002 Pontiac Firebird Formula
- 1998, 1999, 2000, 2001, 2002 Pontiac Firebird Trans Am
- 2004, 2005, 2006 Pontiac GTO Base
WARNING: This product can expose you to chemicals including carbon black, glass wool fibers, and silica, chromium, and nickel, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
FAQ
What does a Sport pressure plate offer versus Heavy Duty?
ACT's Sport pressure plate is a moderate clamp-load upgrade over stock, intended as a comfortable street upgrade rather than the larger increase of the Heavy Duty or Xtreme lines.
Is this kit suitable for daily driving?
Yes, the Sport pressure plate paired with the Performance Street disc is ACT's combination intended for street-friendly engagement with quiet operation.
Which LS1-based platforms share this kit?
Per ACT's fitment data, the GM9-SPSS covers the Camaro Z28, Firebird Formula/Trans Am, C5 Corvette, and GTO for the model years listed in the vehicle applications above.
Is a flywheel included?
No, this kit includes the pressure plate and disc only; ACT flywheels for this platform are sold separately.
