What is the primary benefit of a Stage 2+ clutch kit?

A Stage 2+ clutch kit is designed to handle significantly more power and torque than a stock clutch. It's ideal for vehicles that have been modified with performance upgrades, such as engine tuning or forced induction, helping to prevent clutch slip under heavy acceleration.

Does this SPEC clutch kit include a flywheel?

This SPEC clutch kit (Part# SB453H) includes the clutch disc and pressure plate. It is recommended to resurface or replace your existing flywheel during installation to ensure optimal performance and longevity of the new clutch components.

How does the sprung clutch disc differ from a solid disc?

The sprung clutch disc has springs incorporated into its design, which help to absorb torsional vibrations and shock loads during engagement. This generally results in a smoother engagement feel and reduced drivetrain shock compared to a solid hub disc, making it more comfortable for daily driving.

Specifications

Brand: SPEC
Part #: SB453H

Spec 04-06 BMW 545 4.4L/645 4.4L / 06-09 550 4.8L/650 4.8L Stage 2+ Clutch Kit

Name: Spec 04-06 BMW 545 4.4L/645 4.4L / 06-09 550 4.8L/650 4.8L Stage 2+ Clutch Kit
Brand: SPEC
SKU: spec-spec-04-06-bmw-545-4-4l-645-4-4l-06-09-550-4-8l-650-4-8l-stage-2-clutch-kit-t14-306977
Price: 800.10 USD
Availability: BackOrder

$800.10

On Backorder

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Fits 2006-2009 BMW 550i. SPEC Stage 2+ Clutch Kit SB453H for improved performance.

Key Features

Fits 2004-2005 BMW 545i, 2006-2009 BMW 550i, 2004-2005 BMW 645Ci, and 2006-2009 BMW 650i.
Stage 2+ performance level designed for modified engines and increased power.
Includes a high-performance sprung clutch disc for improved engagement and vibration damping.
Features a heavy-duty pressure plate that offers increased clamping force over stock.
This is a complete clutch kit, intended to replace the factory clutch and flywheel components.

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Will this fit your vehicle?

About this part

Product Details

If you're looking to handle more power or simply want a more robust clutch for your 2004-2009 BMW 545i, 550i, 645Ci, or 650i, this SPEC Stage 2+ Clutch Kit is a solid option. This kit is designed to replace your factory clutch and flywheel assembly, offering a significant upgrade for vehicles equipped with the 4.4L or 4.8L V8 engines. It's a popular choice for those who have modified their engines or plan to, providing the necessary grip to put that extra power down effectively.

SPEC builds this kit with a high-performance sprung disc that balances engagement with durability. The sprung design helps absorb some of the shock and vibration that can come with a stiffer clutch, making it more manageable for daily driving than a solid-hub disc. The kit includes a heavy-duty pressure plate, engineered to provide a strong clamping force, ensuring your clutch engages firmly even under demanding conditions. This combination is crucial for preventing clutch slip when you're accelerating hard or carrying more speed through corners.

When installing this clutch kit, you'll want to ensure your flywheel is in good condition or consider resurfacing or replacing it. This kit is designed as a direct replacement for the factory clutch components, meaning it fits right into your existing drivetrain setup. It's a comprehensive solution for anyone looking to upgrade their BMW's clutch system to handle increased performance demands.