ACT SB4-HDSS HD Perf Street Sprung Clutch Kit 02-08 Subaru Impreza, WRX STI Image1
 
Images are generic.
 

ACT HD Perf Street Sprung Clutch Kit 02-08 Subaru Impreza, WRX STI

 
  • Stock To Moderate Pedal Feel

  • Street And Race Use

  • Full Face Clutch


ACT SB4-HDSS HD Perf Street Sprung Clutch Kit 02-08 Subaru Impreza, WRX STI
List Price: $941.87
$734.95  Save 22%
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Product Details

ACT SB4-HDSS HD Perf Street Sprung Clutch Kit 02-08 Subaru Impreza, WRX STI

This ACT clutch kit includes a Heavy Duty pressure plate, Performance Street disc, release bearing, pilot bearing and alignment tool. The Heavy Duty pressure plate allows for a 20 to 50 percent increase in clamp load over the stock unit. ACT’s Heavy Duty pressure plate features precision CNC machined parts, drive straps and rivets to securely locate contact face to the cover for quiet, trouble-free operation. The Heavy Duty pressure plate will have a stock to moderate pedal feel. ACT pressure plates feature creative diaphragm designs to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure an exclusive four-stage, heat-treating process for unparalleled performance. The Heavy Duty pressure plate meets SFI Specification 1.1.

ACT Performance Street discs are modified with reduced marcel for faster shift action to complement ACT pressure plates. Performance Street discs have higher copper content friction lining for heat tolerance and steel-backed lining for greater burst strength and durability. Also, they feature top grade rivets to securely fasten the part together. The rivet design and rivet materials are carefully selected for maximum strength. ACT spring-centered assemblies use bushings and cone springs similar to factory clutch discs. This creates frictional dampening, which improves clutch life and reduces noise. All Performance Street discs are certified as meeting SFI Specification 1.1 and are legal in all racing organizations that require SFI certification. The kit is completed with a quality, stock replacement release bearing, pilot bearing and alignment tool.

Images used may be generic. Actual product may vary.



  • Spring center;diaphragm;pressure plate;clutch plate
  • All ACT pressure plates are dynamically computer balanced for smooth operation at high RPM
  • Clamp load increase of 20 to 50 percent over stock with a stock to moderate pedal feel
  • Premium organic friction materials for heat tolerance,  faster recovery from overheating and prevents warping of mating surfaces
  • Recommended for street and race use
  • Most clutch kits are certified as meeting SFI Specification 1.1 and are legal for competition in all racing organizations where SFI certification is required

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Vehicle Applications

Years Make Model Trim Chassis Engine Notes
2002 - 2005 Subaru Impreza ALL     HD Clutch Kit Performance Street Disc (SS), Components: SB013, 3000503, RB601, PB1004, AT90 Torque Capacity: 515 ft/lbs Clamp Load Increase: 40% For Version 8-9 JDM/Euro Impreza WRX STi w/ 2.0L Turbo EJ20 Motor
2004 - 2008 Subaru Impreza WRX STI     HD Clutch Kit Performance Street Disc (SS), Components: SB013, 3000503, RB601, PB1004, AT90 Torque Capacity: 515 ft/lbs Clamp Load Increase: 40% For Version 8-9 JDM/Euro Impreza WRX STi w/ 2.0L Turbo EJ20 Motor Torque Capacity: 515 ft/lbs Clamp Load Incre
2004 - 2008 Subaru Impreza WRX STI Limited     HD Clutch Kit Performance Street Disc (SS), Components: SB013, 3000503, RB601, PB1004, AT90 Torque Capacity: 515 ft/lbs Clamp Load Increase: 40% For Version 8-9 JDM/Euro Impreza WRX STi w/ 2.0L Turbo EJ20 Motor Torque Capacity: 515 ft/lbs Clamp Load Incre
2004 - 2007 Subaru Impreza Turbo (GD) EJ25  
SUBARU IMPREZA        
SUBARU IMPREZA        
SUBARU WRX STi      
SUBARU WRX STi      
SUBARU WRX STi      
SUBARU WRX STi