SPEC Stage 3+ Performance Clutch Kit With SPEC Single-mass Flywheel and Hardware - F22, F23, F30, F32 - B58

Product Details

For the manual F-Chassis B58 platform, managing increased torque means upgrading your power transfer components before they fail.

This comprehensive drivetrain package pairs the holding capacity of the SPEC Stage 3+ clutch kit with a balanced SPEC billet steel single-mass flywheel. Unlike heavy aluminum options that can excessively chatter, the billet steel construction maintains enough inertial mass to balance NVH (noise, vibration, and harshness) while massively reducing rotational weight compared to the OEM dual-mass unit.

BMW specifies that bellhousing and transmission mounting bolts are one time use stretch hardware. Reusing old bolts compromises clamping force and risks transmission alignment issues. This kit includes genuine BMW replacement hardware to make sure your transmission stays safely mated to your B58 block under high load track conditions.

Kit Components:

• SPEC Stage 3+ Clutch Kit (for single-mass flywheel conversion)

• SPEC Billet Steel Flywheel

• Genuine BMW Transmission Mounting Bolt

• Genuine BMW Torx Bolt

• Genuine BMW Bellhousing Bolt

Prop 65 Warning

Kit Contents

Product Q&A

Lifetime Replacement

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