View our Specials! Coupon Code: SaveIn2026
SPEC Stage 4 Clutch Kits for a 2001-2006 BMW M3 Base and 2007-2008 BMW Z4 M Coupe.
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Types of Driving:
Street, Drag, Pulling, Autocross
This unit is a solid hub version of the stage 3. The hub is solid 8-rivet and the assembly is heat treated for strength and durability. It is available in a 3, 4 or 6 puck configuration. Use the 3 puck for the lightest option or the 6 puck for the smoothest engagement. The 4 puck is a good compromise for both. Street drivable in 6 puck configuration, but not street friendly due to the rigid hub. Best for drag racing, road racing, pulling, rallye and drift.
Some of these clutch kits must be used with the Spec flywheel. Please contact us or Spec to see if the kit you are interested in needs the use of their flywheel.
| Years | Make | Model | Trim | ||
|---|---|---|---|---|---|
| 2001 - 2006 | BMW | M3 | Base | ||
| 2007 - 2008 | BMW | Z4 | M Coupe |
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For more information on SPEC part number SB664, you can visit the official SPEC website.
