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

A Stage 3 clutch kit, like this SPEC SB073S, offers significantly increased torque holding capacity compared to a stock clutch. This makes it suitable for vehicles with engine modifications that produce more power and torque, ensuring the clutch can reliably transfer that power to the drivetrain without slipping.

Do I need to purchase a flywheel separately for this clutch kit?

Yes, this SPEC Stage 3 clutch kit (SB073S) is specifically designed to be used with a billet single mass flywheel. You will need to ensure you have this type of flywheel installed for the clutch to function correctly and safely.

What is the recommended break-in procedure for this clutch kit?

Proper break-in is essential for the longevity and performance of any performance clutch. It is recommended to follow the specific break-in procedure outlined by SPEC in the installation instructions that come with the kit. This typically involves a period of gentle driving without hard acceleration or sudden stops.

Specifications

Brand: SPEC
Part #: SB073S

Spec 3/03-05 BMW Z4/325/330 6 spd / 04-05 530 Stage 3 Clutch Kit (Use w/ Billet SMF)

Name: Spec 3/03-05 BMW Z4/325/330 6 spd / 04-05 530 Stage 3 Clutch Kit (Use w/ Billet SMF)
Brand: SPEC
SKU: spec-spec-3-03-05-bmw-z4-325-330-6-spd-04-05-530-stage-3-clutch-kit-use-w-billet-t14-475313
Price: 746.10 USD
Availability: BackOrder

$746.10

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Spec Stage 3 clutch kit for 2003-2005 BMW Z4, 325/330, and 2004-2005 530i. Handles increased power and torque for performance builds.

Key Features

Fits 2003-2005 BMW Z4, 325i, 330i, and 2004-2005 530i with 6-speed manual transmission.
Stage 3 performance clutch kit designed for increased torque capacity.
Requires the use of a billet single mass flywheel for proper installation and function.
Features a high-performance friction material for enhanced holding power.
Includes a heavy-duty pressure plate and a robust clutch disc.
Provides a firm engagement feel suitable for performance driving.

This clutch kit is designed for specific BMW models including the Z4, 325i, 330i, and 530i from the 2003-2005 model years with a 6-speed manual transmission. It requires a billet single mass flywheel.

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About this part

Product Details

If you're looking to handle more power and torque in your 2003-2005 BMW Z4, 325i, 330i, or 2004-2005 530i with a 6-speed manual transmission, this SPEC Stage 3 clutch kit is designed for that purpose. This kit is built to manage the demands of a performance-oriented vehicle, especially when paired with a billet single mass flywheel, which is required for proper installation and function.

The Stage 3 clutch features a high-performance friction material that offers a significant increase in holding capacity over stock, allowing your drivetrain to put down more power reliably. It's engineered to provide a firm engagement feel, giving you confidence during spirited driving and track use. The kit includes a heavy-duty pressure plate and a robust clutch disc, all balanced to work together seamlessly. This combination ensures smooth operation while delivering the strength needed for modified engines or demanding driving conditions. Remember, this kit is specifically designed to be used with a billet single mass flywheel, so ensure you have that component ready for installation.

When installing this clutch kit, it's important to follow the manufacturer's recommended procedures. Proper break-in is crucial for ensuring the longevity and performance of the clutch. This kit is a solid option for BMW owners who have upgraded their engine's power output and need a clutch that can keep up without slipping or failing under stress. Always refer to the SPEC installation guide for detailed instructions and break-in procedures.