Spec Clutch SF923F Stage 3 Plus Clutch Kit - Street, Drag, Drift & Road Race

The SPEC SF923F Stage 3 Plus (Stage 3+) Clutch Kit is the flagship street/performance clutch for heavily modified engines that have surpassed the torque capacity of the standard Stage 3. Engineered for high-powered street and race builds that still demand a manageable, driver-friendly engagement, the Stage 3+ delivers a superior balance of torque capacity and daily drivability that sets it apart from more aggressive race-only options.

Carbon Semi-Metallic Full-Face Friction Material

At the heart of the Stage 3+ is a full-faced carbon semi-metallic friction disc, which provides exceptional friction coefficient, outstanding wear life, and smooth engagement characteristics — all in a single package. Compared to puck-style discs, the full-face design reduces clutch chatter and improves pedal feel, making it well-suited for daily street driving between track sessions.

Key Features:

• High-clamp pressure plate for increased torque holding capacity over the standard Stage 3
• Full-faced carbon semi-metallic friction disc for superior life, friction coefficient, and drivability
• High-torque sprung hub and disc assembly — double-sprung with spring cover reliefs for drivetrain flexibility and heat-treated components for long-term strength and durability
• Bearing and tool kit included for a complete installation
• Better wear characteristics and improved manageability compared to the Stage 3

Recommended Driving Applications:

• Street / Daily Driving
• Drag Racing
• Drifting
• Road Racing
• Pulling
• Autocross / Rallye

The SPEC Stage 3+ occupies the highest position in SPEC's street/strip clutch lineup, sitting above the Stage 3 and below dedicated race-only Stage 4 and Stage 5 units. It is the ideal choice for high-output builds that need a clutch capable of handling serious power without sacrificing the engagement quality required for street use.