The Action Clutch Stage 4 (1MD) Clutch Kit is engineered to perform under the most demanding racing conditions. Built for drivers who demand uncompromising strength and precision, this kit features a heavy-duty single diaphragm pressure plate, reinforced drive straps, and an unsprung MIBA ceramic disc—delivering exceptional torque capacity, quick engagement, and superior durability for low to mildly modified engines.

Designed specifically for race-focused applications, this clutch offers maximum control and minimal slip, making it ideal for drag, road, and drift racing environments. While clutch chatter may occur initially, it will smooth out after proper break-in.

For those pushing the limits of performance, the Stage 4 (1MD) provides the aggressive engagement and reliability needed to dominate on the track.

Features:

• Heavy-duty single diaphragm pressure plate for consistent clamping force
• Unsprung MIBA ceramic 6-puck disc for rapid engagement and increased torque handling
• Reinforced drive straps for improved strength and longevity
• Torque Capacity: 170% More Than Stock (rated at crank)
• Designed for race use: Drag, Road, and Drift applications

 Included:

• Unsprung MIBA Ceramic 6-Puck Disc
• Single Diaphragm HD Pressure Plate
• Pilot Bearing / Bushing (when applicable)
• Clutch Alignment Tool
• Conventional Release Bearing

Break-In Requirements

• 500 street miles
• Keep RPMs under 4500
• No more than half-throttle
• No boost (if applicable)

Proper break-in is required to retain warranty coverage, ensure longevity, and achieve full torque-holding capability.

Notes

• Ceramic clutch discs are designed to enhance holding power and durability—not lifespan. For street use, frequent stop-and-go driving may cause premature wear due to the harsher engagement characteristics.
• Unsprung clutch discs are not intended for daily driving. Using one in a stock or lightly modified street vehicle may lead to rivet failure or damage from excessive shock load. Think of it as running a marathon in sandals—possible, but not ideal for endurance.
• Torque ratings are measured at the crank, not the wheels.
• Choosing the correct clutch kit for your power level is essential to avoid premature wear, transmission damage, and warranty issues.