What is the main benefit of a Stage 1 clutch kit over a stock clutch?

A Stage 1 clutch kit, like this one from SPEC, is designed to handle more power than your original clutch. It uses a multi-plate disc and a heavy-duty pressure plate to ensure reliable engagement even when your BMW is producing increased horsepower.

Does this clutch kit come with a new flywheel?

This kit includes the clutch disc and pressure plate. It is recommended to have your existing flywheel resurfaced or replaced to ensure proper clutch engagement and longevity.

How does the sprung hub on the clutch disc affect driving?

The sprung hub is designed to absorb some of the torsional vibrations that occur during engine operation and clutch engagement. This helps to make the clutch feel smoother and more comfortable for daily driving, reducing harshness.

SPEC Stage 1 Clutch Kit SB531

Name: Spec 07-10 BMW 335i/135i Stage 1 Clutch Kit
Brand: SPEC
SKU: spec-spec-07-10-bmw-335i-135i-stage-1-clutch-kit-t14-15275
Price: 719.10 USD
Availability: BackOrder

Spec 07-10 BMW 335i/135i Stage 1 Clutch Kit

$719.10

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

SPEC Stage 1 Clutch Kit SB531 for BMW 135i, 335i, 535i.

Key Features

Fits 2008-2009 BMW 135i, 2007-2009 BMW 335i, 2009 BMW 335i xDrive, 2007-2008 BMW 335xi, 2008-2009 BMW 535i, 2009 BMW 535i xDrive, and 2008 BMW 535xi.
Stage 1 performance clutch kit designed for increased power handling.
Includes a multi-plate clutch disc with a sprung hub for vibration dampening.
Features a heavy-duty pressure plate with increased clamping force.
Designed to be a direct replacement for the factory clutch assembly.

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Will this fit your vehicle?

Product Details

SPEC is known for making well-built drivetrain components, and their Stage 1 Clutch Kit for select BMW models is no exception. If you're looking to replace a worn-out clutch in your 2007-2009 BMW 135i, 335i, or 535i, this kit offers a solid upgrade. It's designed to handle increased power over stock, making it a popular choice for drivers who want a bit more performance without going overboard.

This Stage 1 kit includes a performance-sprung, multi-plate disc and a heavy-duty pressure plate. The multi-plate design helps dissipate heat more effectively than a single-plate clutch, which is crucial for maintaining consistent engagement, especially during spirited driving or when dealing with more power. The sprung hub on the disc helps to dampen vibrations, aiming to keep the driving experience as comfortable as possible for a performance clutch. The pressure plate offers increased clamping force, ensuring that the clutch can hold the power your BMW is putting down.

When installing this kit, you'll want to ensure your flywheel is in good condition or have it resurfaced. This kit is designed as a direct replacement for the factory clutch assembly, meaning it fits right into the existing transmission bellhousing. It's a significant upgrade for drivers who push their BMWs a bit harder than usual, offering improved durability and engagement feel over a standard clutch.