What is the main benefit of a Stage 3 clutch kit?

A Stage 3 clutch kit, like this SPEC kit, is designed to handle significantly more torque and horsepower than a stock clutch. It uses more aggressive friction materials and a stronger pressure plate to ensure reliable power transfer for modified engines.

Does this clutch kit include everything needed for installation?

This kit includes the clutch disc and pressure plate. It is recommended to inspect and resurface or replace your flywheel, and it's often a good idea to replace the pilot bearing and release bearing at the same time, though these are typically sold separately.

What is the break-in procedure for this clutch?

SPEC recommends a specific break-in procedure for their performance clutches to ensure optimal performance and longevity. This usually involves a series of gentle accelerations and decelerations without hard launches or excessive slipping. Always refer to the manufacturer's included instructions for the exact steps.

Specifications

Brand: SPEC
Part #: SP163

Spec 89-91 Porsche 928 5.0L GT/Club Sport/S4 Stage 3 Clutch Kit

Name: Spec 89-91 Porsche 928 5.0L GT/Club Sport/S4 Stage 3 Clutch Kit
Brand: SPEC
SKU: spec-spec-89-91-porsche-928-5-0l-gt-club-sport-s4-stage-3-clutch-kit-t14-4327671
Price: 1619.10 USD
Availability: BackOrder

$1619.10

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Fits 1989-1991 Porsche 928. SPEC Stage 3 Clutch Kit for 5.0L GT/Club Sport/S4 models. Handles increased power and torque.

Key Features

Fits 1989-1991 Porsche 928.
Stage 3 clutch kit with a sprung hub disc and carbon-ceramic friction material.
Designed to handle increased torque and horsepower for modified vehicles.
Includes a heavy-duty pressure plate for firm engagement and consistent power transfer.
Sprung hub design helps dampen vibrations for a more comfortable feel.
Intended for performance applications on 5.0L GT, Club Sport, and S4 models.

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About this part

Product Details

The SPEC Stage 3 clutch kit for your 1989-1991 Porsche 928 is built with a high-performance sprung hub disc, featuring a unique carbon-ceramic friction material. This combination is designed to handle significantly more torque and horsepower than the factory clutch, making it a solid choice if you've modified your 5.0L GT, Club Sport, or S4 model for increased performance.

This kit includes a heavy-duty pressure plate that offers a firmer pedal feel compared to stock, which helps ensure positive engagement and consistent power transfer. The sprung hub design of the disc helps to dampen vibrations, providing a more comfortable driving experience than a rigid hub setup, even with the aggressive friction material. SPEC has engineered this kit to be a direct replacement for the original clutch, simplifying the installation process for mechanics familiar with the 928 drivetrain.

When installing this clutch kit, it's important to ensure your flywheel is in good condition or resurfaced properly to mate with the new friction material. This kit is intended for vehicles that have seen performance upgrades and require a clutch capable of handling the extra demands. You'll want to follow the manufacturer's break-in procedure after installation to ensure the best performance and longevity of the clutch components.