Spec 06-09 BMW M5/M6 5.0L 6sp Super P-Trim Clutch Kit

The S85 V10 in the E60 M5 and E63/E64 M6 revs past 8,000 rpm, and once a supercharger or turbo kit goes on, the factory clutch in the six-speed manual cars runs out of margin quickly. SPEC SB60PT-2 is the Super Twin in P-Trim for the 2006-2009 BMW M5 and M6 5.0L with the six-speed manual. It is a twin-disc multiplate clutch that SPEC rates at 1156 ft-lb, aimed at forced-induction V10 builds and hard track use rather than a stock car that just needs a fresh clutch.

What the Super Twin P-Trim does in an M5 or M6

A twin-disc clutch splits the job between two driven discs and an intermediate plate, so it holds far more torque than a single disc of the same diameter without needing a crushing spring load. That matters on the V10 cars, where a heavy single-disc upgrade makes a long drive in traffic tiring. The P-Trim discs use semi-metallic pucks, which take the heat of repeated full-throttle shifts and launches better than an organic facing, at the cost of a quicker, more on-off engagement.

The details of this specific kit tell you which car it is for. SPEC sells four Super Twin P-Trim versions for these cars: SB60PT and SB60PTA fit the SMG cars, while SB60PT-2 and SB60PT-2A fit the six-speed manual. SB60PT-2 is the manual-transmission version with a listed weight of 50 lb; the SB60PT-2A lists at 40 lb. Both manual versions carry the same 1156 ft-lb rating.

Symptoms that point to this clutch

• Revs flare in the upper gears after adding a supercharger, turbo kit or aggressive tune
• A single-disc stage clutch that slips at high rpm, where the V10 makes its power
• Burnt clutch smell or fade after a track session
• Pedal engagement point climbing as the old disc wears
• Hot spots, cracks or blueing on the flywheel at teardown

How to confirm before you buy

Datalog a high-gear pull and compare engine rpm with road speed; if rpm rises without speed following, the clutch is slipping. Bleed the clutch hydraulics and inspect the slave cylinder before blaming the disc, and check for oil at the bellhousing from the rear main seal or gearbox input seal. Our slipping diagnosis guide covers the checks, and the manual repair cost guide helps when you are budgeting the job. For a near-stock car, a single disc such as the Clutch Masters FX100 kit for the E60/E63 six-speed keeps factory-like manners.

Fitment

Our listing covers the 2006-2009 BMW M5 and M6 5.0L V10 with the six-speed manual, and SPEC lists the six-speed manual cars from 2006 through 2010. The six-speed manual was offered mainly in North America, with the SMG automated gearbox standard elsewhere, and SMG cars need SB60PT or SB60PTA instead, not this kit. Check the shifter: a conventional H-pattern with a clutch pedal means a manual car. If the car has been converted from SMG to manual, send the year and VIN along with the details of the conversion parts before ordering. More clutch and drivetrain parts are in our rebuild kits department.

Install notes

• Compare the box contents against SPEC's instructions before the car goes on the lift, and keep the discs and intermediate plate in the order they ship.
• Clean the crank flange, use new flywheel bolts torqued to the factory figure in sequence, and draw the clutch cover down evenly in a crossing pattern with a torque wrench.
• Center both discs with a clutch alignment tool so the input shaft slides through both hubs without force.
• Inspect the release bearing, fork and pilot bearing, and fix any oil leaks while the gearbox is out.
• Bleed the hydraulics with fresh fluid of the type on the reservoir cap; a vacuum bleeder helps. Follow SPEC's break-in before full-power use.

Does this fit an SMG M5 or M6?

No. SB60PT-2 is SPEC's six-speed manual version. SMG cars use SB60PT or SB60PTA.

What is the difference between SB60PT-2 and SB60PT-2A?

Both fit the six-speed manual cars and carry the same 1156 ft-lb rating. SPEC lists SB60PT-2 at 50 lb and SB60PT-2A at 40 lb.

How much torque will it hold?

SPEC rates the SB60PT-2 at 1156 ft-lb.

Is it streetable?

Yes, with compromises. Semi-metallic puck discs engage more abruptly than stock and twin-disc clutches can be noisier at idle, but splitting the load over two discs keeps pedal effort reasonable.

Does the 2010 model fit?

SPEC lists 2006-2010 six-speed manual M5 and M6 cars. Our listing title says 2006-2009, so send your VIN for a 2010 and we will confirm.

• Transmission Slipping Diagnosis Guide
• Automatic vs Manual Transmission Repair Cost
• Rebuild vs Replace vs Reman Transmission