OS Giken BM237-BF6 TR2CD Twin Plate Clutch for 2001-06 BMW E46 M3 S54

Vehicle Fitment

• 2001-2006 BMW M3 (E46) Coupe, S54 engine, 6-speed manual
• 2001-2006 BMW M3 (E46) Convertible, S54 engine, 6-speed manual

Fitment Notes

• Requires the OEM pilot bearing or bushing (not included)
• Use of the OS Giken BM237-EB Metal Clutch Alignment Tool is recommended for proper installation
• Not compatible with the E92 M3 (S65 engine) - that application uses OS Giken part BM533-BF6
• Designed for manual transmission cars; not applicable to SMG-II equipped M3s

Features

• TR Series design engineered for vehicles with substantial increases in engine power
• Billet aluminum clutch cover for a more direct, connected pedal feel
• Unique diaphragm spring leverage mechanism that reduces overall pedal effort despite increased clamping force
• Dampened hub clutch discs, 215mm, rated reliably to approximately 800 lb-ft of torque
• Increased clamping force and capacity for hard track and racing use
• Suited to heavily modified, high-power turbocharged or naturally aspirated builds
• Designed primarily for racing use with mild street drivability retained

Specifications

• Clutch type: Twin plate, dampened hub
• Disc diameter: 215mm
• Torque capacity: Approximately 800 lb-ft
• Cover material: Billet aluminum
• Engine application: S54 (BMW E46 M3)

Included Components

• 1x Twin Plate Clutch Assembly with Flywheel
• 1x Release Sleeve Bearing
• OS Flywheel Bolts

Product Description

The OS Giken BM237-BF6 is a TR2CD dampened twin plate clutch built specifically for the 2001-2006 BMW E46 M3's S54 engine, designed for cars that have seen a substantial increase in power output. The billet aluminum cover delivers a noticeably more direct clutch pedal feel compared to a stock unit, while OS Giken's unique diaphragm spring leverage mechanism keeps pedal effort manageable despite the added clamping force - an important balance for drivers who still want to drive the car on the street between track days.

At the core of the clutch are 215mm dampened hub discs rated to handle roughly 800 lb-ft of torque reliably, giving heavily modified E46 M3 builds serious holding power without sacrificing durability under repeated hard use. The increased clamping force from the billet aluminum cover is built to withstand the abuse of track driving and time attack competition, making this clutch a common choice in dedicated performance and racing applications.

This kit is intended for E46 M3 owners running builds that have outgrown a stock or lightly upgraded single-disc clutch, particularly those with substantial power increases from forced induction or built engines. Installation requires the OEM pilot bearing or bushing, and OS Giken recommends using their BM237-EB alignment tool to ensure proper clutch centering during the install.