These are manufactured with a 1/4″ UNF

Inlet Fitting (20mm) - Suits Turbosmart Kompact Dual Port and Plumb Back BOVs

Subaru WRX STi Internal Wastegate Actuator (IWG) provides better turbo response and greater sensitivity when managing boost pressures

Be sure to check out the Nissan 370Z Lock kit for a complite suspension upgrade

Clutch Kit - Xtreme Performance Race Carbon Blade KMI23022-1P JR16 These are manufactured with aStage 3 Clutch Kits Carbon Race Series Used by some of the most powerful time attack and drift cars in the world, the Xtreme Clutch single plate carbon clutch provides exceptional heat capacity for high horsepower vehicles. Recommended for: Xtreme powered vehicles requiring improved modulation