SPEC is a Manufacturer of street high performance and racing clutches and flywheels. Featuring Clutch Kits From street kit Stage 1, 2, 2+, 3, and 3+ to Race Kits Stage 4 and 5. And now the SPEC Super Twin with TQ ratings of over 1500 FT TQ! Every SPEC Clutch Kit and Flywheel has been SFI Approved.

This Stage 2+ Clutch Kit features a multi-friction disc in a full faced configuration with carbon semi-metallic on one side and Kevlar on the other. Bridging the gap between stage 2 and stage 3, the 2+ offers drivability and engagement quality characteristic of the stage 2, but with a 15-20% higher torque capacity. The hub comes in either Sprung or Rigid and is application dependent. The double sprung hud features spring cover relieves for flexibility and both hubs use heat treated components for strength and durability. The SPEC Stage 2+ Clutches are designed for all mild to moderately modified naturally aspirated and power added engines, but can be used with stock power levels without sacrificing driveability or excessive wear characteristics. They are the perfect balance of driveability and durability that makes them a great choice for Mustangs that see a lot of time on the street as well as the strip and track. Great for street, drag, autocross, road racing, pulling, rally and drift.

Kit Part Number: SF503H-2 (10 Spline / Stock)
Torque Capacity: 705 ft tq
Fits Vehicles: 2011 Ford Mustang GT V8 5.0, 2011 2012 2013 2014 Ford Mustang V6 3.7L

Clutch Kit Notes: The SF37A billet flywheel is configured to accept the original V6 3.7L clutch and the V8 5.0L Coyote GT clutch. The V8 clutch kits cannot be used with the original dual mass flywheel. Purchasing a complete SPEC package will eliminate the possibility of fitment issues that exist with the superseded factory dealer parts. Stages 1-3+ are recommended for street/strip, while Stages 4-5 are race only. These clutch kits have the 6 bolt pressure plate cover pattern for use in cars through 2/2011 production or in a any car with a 6 bolt pressure plate pattern flywheel. All SPEC modular flywheels have a 6,9 and custom 12 bolt pattern for use with a number of pressure plates.