Types of Driving: Street, Drag, Drift, Road Race, Rally, Pulling, Autocross
For bolt on naturally aspirated and mildly modified forced induction engines. Stock-like daily drivability and very good wear characteristics.
High clamp pressure plate, steel-backed and multi-compound woven organic material and high torque sprung hub and disc assembly, bearing and tool kit.

Spec Clutch Stage2

Types of Driving: Street, Drag, Pulling, Autocross
For all mild to moderately modified naturally aspirated and power adder engines. (Also good for stock power levels and spirited driving when good daily drivability and extremely long life are the goal.) Stock-like daily drivability and EXCELLENT wear characteristics.
High clamp pressure plate, pure Kevlar friction material and high torque sprung hub and disc assembly, bearing and tool kit.

Spec Clutch Stage3

Types of Driving: Street, Drag, Drift, Road Race, Rally, Pulling, Autocross
For heavily modified street and race engines. Offers sufficient daily drivability with a comfortable pedal feel and quick engagement. Offers good wear characteristics under low and high stress usage.
High clamp pressure plate, 4 or 6 puck carbon semi-metallic friction with high torque sprung hub and disc assembly, bearing and tool kit. 6 puck is standard on most applications, but 4 puck can be specified when ordering.

Spec Clutch Stage4

Types of Driving: Drag, Drift, Road Race, Rally, Pulling, Circle Track
For heavily modified engines or engines of any modification level being used in the above driving environments, where an instantaneous engagement and light weight are beneficial. Not street-friendly due to harsh engagement.
High clamp pressure plate, 3,4 or 6 puck carbon semi-metallic friction with high torque rigid hub and carrier assembly, bearing and tool kit.