Clutch

• The clutch connects and disconnects the transmission system from the engine on manual transmission vehicles. Performance clutches feature sturdier construction and heavier-tensioned springs when compared to stock units, allowing the clutch to reliably operate under the strain of increased horsepower and high-performance driving.
  
  

Flywheel

• The flywheel is mounted to the engine crank. As the engine revs, the flywheel spins. When the clutch is engaged, the flywheel drives the transmission system, accelerating your vehicle. Performance flywheels feature a lightweight construction that allow your engine to rev up faster, increasing acceleration and general engine response.
  
  

Differential

• The differential is the final gear system that translates engine horsepower into vehicle acceleration. Most vehicles are equipped with open differentials, which allow only one wheel to spin when the vehicle loses traction. You can upgrade your vehicle's open differential to a limited-slip differential to increase its traction and handling abilities. Limited-slip differentials lock the axle into place when one wheel loses traction, forcing both wheels to spin simultaneously.
  
  

Final Drive

• The final drive gear is often upgraded to increase the overall gear ratio of the transmission. By installing a larger final drive gear, the transmission speeds are increased relative to the engine speed. This makes for a lower top speed in each gear, but allows your vehicle to accelerate through the gears faster, increasing acceleration potential.