Stock Replacement: Ideal for standard SR20DET engines. Any car with modifications or boost upgrade etc, we would recommend going with the Stage 1 organic instead Includes new release bearing To fit 180SX/S13 SR20DET and S14/14a SR20DET. WILL NOT fit S15 Spec-R 6 speed*. For more information, compatibility questions or to arrange fitting do not hesitate to contact us. * Will not fit S15 Spec-R unless a dual mass conversion flywheel is fitted Organic: The Stage 1 Organic clutch incorporates friction material with high heat-resistance properties and high strength fibres making it an ideal clutch for street/fast road and circuit driving. OEM clutch pedal and engagement feeling Approximately 40% higher clamp load than the standard clutch. Up to a 30% increase in torque capacity over standard. Includes new release bearing To fit 180SX/S13 SR20DET and S14/14a SR20DET. WILL NOT fit S15 Spec-R 6 speed*. For more information, compatibility questions or to arrange fitting do not hesitate to contact us. * Will not fit S15 Spec-R unless a dual mass conversion flywheel is fitted Sports Paddle: The stage 2 sports paddle type cerametallic discs are designed to be light weight; Inertia is 10% lower than OEM. These discs have excellent heat dissipation characteristics. Ideal clutch for street/fast road, circuit and drifting. Up to a 40% increase in torque capacity over standard. Similar pedal feel to OEM but with firmer biting point Approximately 40% higher clamp load than the standard clutch. Includes new release bearing To fit 180SX/S13 SR20DET and S14/14a SR20DET. WILL NOT fit S15 Spec-R 6speed*.For more information, compatibility questions or fitting enquiries do not hesitate to contact us. * Will not fit S15 Spec-R unless a dual mass conversion flywheel is fitted Hyper Single: The Hyper Single Clutch is engineered to optimise the performance of cars that are moderately modified, but do not require the clutch capacity of a multi-plate clutch. Similar to our multi-plate clutches, it has a purple anodized, forged aluminium cover. The aluminium cover is stiffer than a stamped cover and therefore allows a higher lever ratio to maintain the pedal efforts at a reasonable level. There is no clamp load deflection as found in a pressed metal type cover. All hyper single clutches come with a chromoly steel flywheel, 6-puck cerametallic facing and a sprung centre damper disc assembly. An additional feature of the pressure plate is a series of turbine like, air flow enhancing vanes that keep the clutch cooler under extreme operating conditions to improve wear life. Durability is improved with the use of a stronger, smaller damper disc, specifically redesigned for the Hyper Single. A lower level of inertia is achieved over the genuine fitment clutch which improves shift response for faster gear changes. 20 to 30% reduction in inertia vs OEM Includes new release bearing Suitable for: Track day / Circuit Racing / Time Attack / Drift / Drag To fit 180SX/S13 SR20 DET + S14/14a SR20 DET. WILL NOT fit S15 Spec-R 6speed. For more information, compatibility questions or fitting enquiries do not hesitate to contact us.