What is the primary benefit of a Stage 4 clutch kit?

A Stage 4 clutch kit is designed to handle significantly higher torque loads than a stock clutch. This makes it suitable for modified engines or vehicles used in performance driving where the stock clutch would slip.

Does this clutch kit include everything needed for installation?

This SPEC Stage 4 clutch kit includes the pressure plate, a sprung hub clutch disc, and a release bearing. It's recommended to inspect and potentially resurface or replace your flywheel during clutch installation.

Will this clutch kit feel significantly different from my stock clutch?

Yes, a Stage 4 clutch typically has a firmer pedal feel and a more direct engagement compared to a stock clutch. The sprung hub disc helps to absorb some driveline shock, but it's generally a more performance-oriented setup.

Specifications

Brand: SPEC
Part #: SB804

Spec 99-00 BMW 323 / 00-05 325 / 96-02 525 99-01 Z3 2.5L Stage 4 Clutch Kit

Name: Spec 99-00 BMW 323 / 00-05 325 / 96-02 525 99-01 Z3 2.5L Stage 4 Clutch Kit
Brand: SPEC
SKU: spec-spec-99-00-bmw-323-00-05-325-96-02-525-99-01-z3-2-5l-stage-4-clutch-kit-t14-236089
Price: 680.40 USD
Availability: BackOrder

$680.40

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SPEC Stage 4 Clutch Kit SB804 for BMW 323, 325, 525, and Z3 2.5L. Handles higher torque for performance builds.

Key Features

Fits 1999-2000 BMW 323Ci and 323i.
Fits 2001-2006 BMW 325Ci and 2001-2005 BMW 325i and 325xi.
Fits 2001-2002 BMW 525i.
Fits 1999-2001 BMW Z3.
Stage 4 performance clutch kit designed for increased torque capacity.
Includes a high-clamping force pressure plate and a sprung hub clutch disc.

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About this part

Product Details

This is the SPEC Stage 4 Clutch Kit, part number SB804, designed for a range of BMW models including the 323Ci, 323i, 325Ci, 325i, 325xi, 525i, and Z3 with the 2.5L engine. If you're looking to significantly increase the torque capacity of your manual transmission BMW, this kit is built for that purpose. It's a popular choice for drivers who have modified their engines or plan to, needing a clutch that can reliably handle more power than the stock unit.

The Stage 4 kit features a high-performance pressure plate that offers increased clamping force, ensuring the clutch disc stays firmly engaged even under demanding conditions. It comes with a sprung hub disc designed to absorb driveline shock, which is crucial when dealing with higher horsepower and torque. This combination helps to manage the power effectively while providing a more direct feel than a stock clutch. The kit also includes a new release bearing, so you have the essential components needed for a complete clutch replacement.

When installing a clutch kit like this, it's important to ensure your flywheel is in good condition. If it shows signs of wear, glazing, or heat spots, it should be resurfaced or replaced to ensure proper clutch engagement and longevity. This SPEC Stage 4 kit is a solid option for BMW owners who have pushed their vehicles beyond stock performance levels and require a clutch that can keep up.