General Fitment

Lightweight flywheels are a great way to improve the performance of your vehicle because they reduce rotating mass. This means your engine will rev more freely and accelerate faster because less horsepower will be lost between the crank and the wheels, making your engine work more efficiently.

Spec billet flywheels are manufactured and developed for specific driving environments and recommended based on how each car reacts to changes in rotating mass. Spec flywheels are not a one-fits-all lightweight flywheel, though they can be used for an array of driving habits and racing/high performance applications. Manufactured from only the highest quality aluminum, they are the only flywheels on the market manu...(choose a part on the right to read more)

General Fitment

The spec 3+ clutch is 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 is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability.

Torque capacity: 420ft/lbs

Spec 3+ clutches are great for street, drag, drift, autocross, road racing, pulling, rallye and drift events.

General Fitment

Spec stage 1 clutches features an integrally molded carbon kevlar-based, high performance organic lining that offers smooth engagement and excellent life. This lining has an integrally bonded steel backing for strength under high clamp loads and temperatures. The hub is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability. Best for street and many track/off-road applications.

Torque capacity: 250ft/lbs

Spec stage 1 clutches are for street and occasional track duty, with more performance ability than the stock clutch can provide.

General Fitment

Spec stage 5 clutch Porsche 944 2.5l turbo 86-90

What good is more horsepower if it isn_t transferred to the ground? The clutch is the main link between the power your engine produces and the transmission, but all too often it is also the weak link. Many stock clutches simply will not last under harsh driving conditions or continual hard launches. When a car is making more horsepower than stock the factory clutch is under even more strain. This can cause premature clutch wear and costly repair bills. Spec clutch solves this problem with their line of performance clutches. With increased surface area spec clutches give your transmission more _bite_ while increasing reliability and performance.

App...(choose a part on the right to read more)

General Fitment

The spec stage 2 clutch features segmented or full faced pure kevlar disc with steel backing. This lining features excellent drivability like the stage 1, but offers slightly longer life and higher torque capacity. The hub is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability. Best for street, drag, pulling and autocross.

Torque capacity: 295ft/lbs

Spec stage 2 clutches are made for street driving, some drag racing, and autocross duty.

General Fitment

Spec stage 3 clutches feature a carbon semi-metallic 6 puck sprung hub disc that has been the leading puck clutch in drivability, life and torque capacity. This unit is designed for street and race cars that require an aggressive but streetable engagement and high torque capacity. The hub is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability.

Torque capacity: 370ft/lbs

Spec 3 clutches are great for street, drag, road racing, pulling, rallye and drift.

General Fitment

Spec stage 2+ clutches feature 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 is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability.

Torque capacity: 330ft/lbs

Stage 2+ clutches are great for street, drag, autocross, road racing, pulling, rallye and drift events.

General Fitment

Spec stage 2+ clutch Porsche 944 2.5l turbo 97-90

What good is more horsepower if it isn_t transferred to the ground? The clutch is the main link between the power your engine produces and the transmission, but all too often it is also the weak link. Many stock clutches simply will not last under harsh driving conditions or continual hard launches. When a car is making more horsepower than stock the factory clutch is under even more strain. This can cause premature clutch wear and costly repair bills. Spec clutch solves this problem with their line of performance clutches. With increased surface area spec clutches give your transmission more _bite_ while increasing reliability and performance.

Ap...(choose a part on the right to read more)

General Fitment

What good is more horsepower if it isn't transferred to the ground? The clutch is the main link between the power your engine produces and the transmission, but all too often it is also the weak link. Many stock clutches simply will not last under harsh driving conditions or continual hard launches. When a car is making more horsepower than stock the factory clutch is under even more strain. This can cause premature clutch wear and costly repair bills. Spec clutch solves this problem with their line of performance clutches. With increased surface area spec clutches give your transmission more 'bite' while increasing reliability and performance.

Applications: street, drag, pulling, autocross. Features s...(choose a part on the right to read more)

General Fitment

Spec stage 4 clutches are basically a solid hub version of the stage 3 clutch. The hub is solid 8-rivet and the assembly is heat treated for strength and durability. It is available in a 3, 4 or 6 puck configuration. Use the 3 puck for the lightest option or the 6 puck for the smoothest engagement. The 4 puck is a good compromise for both. Street drivable in 6 puck configuration, but not street friendly due to the rigid hub. Best for drag racing, road racing, pulling, rallye and drift.

The spec stage 4 clutch is a built-to-order item; please indicate 3, 4, or 6 puck when ordering.

General Fitment

Spec stage 1 clutches features an integrally molded carbon kevlar-based, high performance organic lining that offers smooth engagement and excellent life. This lining has an integrally bonded steel backing for strength under high clamp loads and temperatures. The hub is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability. Best for street and many track/off-road applications.

Torque capacity: 310ft/lbs

Spec stage 1 clutches are for street and occasional track duty, with more performance ability than the stock clutch can provide.

General Fitment

What good is more horsepower if it isn't transferred to the ground? The clutch is the main link between the power your engine produces and the transmission, but all too often it is also the weak link. Many stock clutches simply will not last under harsh driving conditions or continual hard launches. When a car is making more horsepower than stock the factory clutch is under even more strain. This can cause premature clutch wear and costly repair bills. Spec clutch solves this problem with their line of performance clutches. With increased surface area spec clutches give your transmission more 'bite' while increasing reliability and performance.

Applications: street, drag, pulling, autocross. Features...(choose a part on the right to read more)

General Fitment

What good is more horsepower if it isn't transferred to the ground? The clutch is the main link between the power your engine produces and the transmission, but all too often it is also the weak link. Many stock clutches simply will not last under harsh driving conditions or continual hard launches. When a car is making more horsepower than stock the factory clutch is under even more strain. This can cause premature clutch wear and costly repair bills. Spec clutch solves this problem with their line of performance clutches. With increased surface area spec clutches give your transmission more 'bite' while increasing reliability and performance.

Applications: street, drag, pulling, autocross. This uni...(choose a part on the right to read more)

General Fitment

What good is more horsepower if it isn't transferred to the ground? The clutch is the main link between the power your engine produces and the transmission, but all too often it is also the weak link. Many stock clutches simply will not last under harsh driving conditions or continual hard launches. When a car is making more horsepower than stock the factory clutch is under even more strain. This can cause premature clutch wear and costly repair bills. Spec clutch solves this problem with their line of performance clutches. With increased surface area spec clutches give your transmission more 'bite' while increasing reliability and performance.

Applications: street, drag, pulling, autocross. The flag...(choose a part on the right to read more)

General Fitment

Lightweight flywheels are a great way to improve the performance of your vehicle because they reduce rotating mass. This means your engine will rev more freely and accelerate faster because less horsepower will be lost between the crank and the wheels, making your engine work more efficiently.

Spec billet flywheels are manufactured and developed for specific driving environments and recommended based on how each car reacts to changes in rotating mass. Spec flywheels are not a one-fits-all lightweight flywheel, though they can be used for an array of driving habits and racing/high performance applications. Manufactured from only the highest quality aluminum, they are the only flywheels on the market manu...(choose a part on the right to read more)

General Fitment

Spec stage 4 clutches are basically a solid hub version of the stage 3 clutch. The hub is solid 8-rivet and the assembly is heat treated for strength and durability. It is available in a 3, 4 or 6 puck configuration. Use the 3 puck for the lightest option or the 6 puck for the smoothest engagement. The 4 puck is a good compromise for both. Street drivable in 6 puck configuration, but not street friendly due to the rigid hub. Best for drag racing, road racing, pulling, rallye and drift.

Torque capacity: 370ft/lbs

The spec stage 4 clutch is a built-to-order item; please indicate 3, 4, or 6 puck when ordering.

General Fitment

The spec 3+ clutch is 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 is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability.

Spec 3+ clutches are great for street, drag, drift, autocross, road racing, pulling, rallye and drift events.

General Fitment

The spec stage 2 clutch features segmented or full faced pure kevlar disc with steel backing. This lining features excellent drivability like the stage 1, but offers slightly longer life and higher torque capacity. The hub is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability. Best for street, drag, pulling and autocross.

Spec stage 2 clutches are made for street driving, some drag racing, and autocross duty.

General Fitment

Spec stage 1 clutches features an integrally molded carbon kevlar-based, high performance organic lining that offers smooth engagement and excellent life. This lining has an integrally bonded steel backing for strength under high clamp loads and temperatures. The hub is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability. Best for street and many track/off-road applications.

Spec stage 1 clutches are for street and occasional track duty, with more performance ability than the stock clutch can provide.

General Fitment

Spec stage 2+ clutches feature 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 is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability.

Stage 2+ clutches are great for street, drag, autocross, road racing, pulling, rallye and drift events.

General Fitment

Spec stage 1 clutches features an integrally molded carbon kevlar-based, high performance organic lining that offers smooth engagement and excellent life. This lining has an integrally bonded steel backing for strength under high clamp loads and temperatures. The hub is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability. Best for street and many track/off-road applications.

Spec stage 1 clutches are for street and occasional track duty, with more performance ability than the stock clutch can provide.

General Fitment

What good is more horsepower if it isn't transferred to the ground? The clutch is the main link between the power your engine produces and the transmission, but all too often it is also the weak link. Many stock clutches simply will not last under harsh driving conditions or continual hard launches. When a car is making more horsepower than stock the factory clutch is under even more strain. This can cause premature clutch wear and costly repair bills. Spec clutch solves this problem with their line of performance clutches. With increased surface area spec clutches give your transmission more 'bite' while increasing reliability and performance.

Applications: street, drag, pulling, autocross. Features s...(choose a part on the right to read more)

General Fitment

Spec stage 3 clutches feature a carbon semi-metallic 6 puck sprung hub disc that has been the leading puck clutch in drivability, life and torque capacity. This unit is designed for street and race cars that require an aggressive but streetable engagement and high torque capacity. The hub is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability.

Spec 3 clutches are great for street, drag, road racing, pulling, rallye and drift.

General Fitment

What good is more horsepower if it isn't transferred to the ground? The clutch is the main link between the power your engine produces and the transmission, but all too often it is also the weak link. Many stock clutches simply will not last under harsh driving conditions or continual hard launches. When a car is making more horsepower than stock the factory clutch is under even more strain. This can cause premature clutch wear and costly repair bills. Spec clutch solves this problem with their line of performance clutches. With increased surface area spec clutches give your transmission more 'bite' while increasing reliability and performance.

Applications: street, drag, pulling, autocross. Features...(choose a part on the right to read more)

General Fitment