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.
The flagship stage for a high powered street or race car that requires a manageable and friendly engagement, the stage 3+ features a carbon semi-metallic full faced material that offers unparalleled life, friction co-efficient and drivability characteristics in one single package. 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 3+ Clutches are designed to be the perfect clutch for a high powered street or race car. Unlike other pure "race type" clutches, the pedal feel of the 3+ is still worthy of the strip, but not so unforgiving as a "puck style". Combining elements of a race clutch with a street clutch means a Stage 3+ will hold up to many passes on the strip while still letting you drive your Pony to and from the track.
Kit Part Number: SF503F-2 (10 Spline / Stock) Torque Capacity: 875 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 Purchasing a complete SPEC package will eliminate the possibility of fitment issues that exist with the superseded factory dealer parts.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.