Spec Clutch SF612 Stage 2 Kevlar Performance Clutch Kit

The Spec Clutch SF612 Stage 2 Clutch Kit is the ideal performance upgrade for street-driven vehicles with mild to moderately modified naturally aspirated or power adder engines. Engineered to deliver stock-like daily drivability with significantly improved torque capacity and wear life over a Stage 1 clutch, this kit is also an excellent choice for stock power applications where long service life and smooth engagement are priorities.

At the heart of the SF612 is a pure Kevlar friction disc with steel backing — available in segmented or full-faced configuration depending on application — providing excellent drivability with greater longevity and higher torque handling than organic-lined clutches. The sprung hub design (application dependent) features a double-sprung configuration with spring cover reliefs for flexibility, along with heat-treated components throughout for added strength and durability.

Kit Includes:

• High-clamp performance pressure plate
• Pure Kevlar friction disc with steel backing
• High-torque sprung hub and disc assembly
• Release/throwout bearing
• Clutch alignment tool

Key Features:

• Kevlar friction material for superior wear life and torque capacity
• Stock-like pedal feel and engagement for everyday drivability
• Double-sprung hub with heat-treated components for durability
• High-clamp pressure plate for increased clamping force
• SFI approved — designed, hand-built, and tested in the U.S.A.
• Suitable for street, drag, pulling, and autocross use

The Stage 2 is the sweet spot in SPEC's street performance lineup — offering a meaningful step up in torque capacity and wear resistance over the Stage 1 without sacrificing the comfortable, progressive engagement drivers expect on the street. It is recommended to pair this clutch kit with a new or freshly resurfaced flywheel for optimal performance and longevity.