
The SPEC Stage 4 clutch kit is a single-disc upgrade for select BMW applications from roughly 1989 through 2000, including common 3-series variants and M3/Z3 fitments listed by SPEC. As a Stage 4 option it provides increased holding capacity compared with milder stages, intended for drivers who need a more durable clutch for aggressive street or track duty. The kit is supplied to match the specified model ranges for direct-fit replacement.
Spec 94-99 BMW 323/96-00 328/89-95 525/96-99 M3/96-98 Z3 Stage 4 Clutch Kit