The SPEC Stage 2 clutch is a premium, no compromises heavy-duty clutch upgrade for the 2006+ N52 E9X 325/328/330i. Where the stock clutch will slip under hard conditions and the factory dual mass flywheel is a known failure point, the SPEC clutch delivers with an over-engineered, performance-oriented clutch solution. The single carbon-Kevlar clutch is rated at 485 ft-lbs, more than enough for the naturally-aspirated N52 engines. A heavy-duty pressure plate and throw-out bearing complete the package.
The stock clutch in the N52 cars is not a terrible clutch and it is not under-rated. Our tuned 330i street and race cars have used the stock clutch with close to 300hp with only the occassional slip. But if the clutch is not grabbing like you want it to, or your tuning plans will include forced induction, a heavy-duty clutch is what will be needed. The SPEC Stage 2 clutch consists of a carbon-Kevlar friction material paired with a heavy-duty pressure plate. The clutch is stronger and grabs harder than the factory clutch. It has a much more robust feel and engagement. And with this specification the clutch will never be a weak point. The SPEC clutch is designed to work with the stock dual mass flywheel or with a lightweight aluminum single-mass flywheel.
The real weak point in the driveline is in the flywheel. The stock dual-mass flywheel has rubber damper discs inside that will wear out over time. Heat and aggressive driving will accelerate their wear. Even if the clutch contact surface is not showing wear the inner rubber linings most likely are. On most clutch replacements we strongly advise getting a new flywheel at the same time to avoid duplicating the work. You can use the SPEC clutch with the stock or aluminum flywheel. The aluminum is quite a bit lighter than stock and will be single-mass. There will be a lot more noise and 'gearbox chatter' with the aluminum but the tradeoff is a much better acceleration and quicker revving. For daily driver commuting you will probably be happiest with the stock flywheel. For the ultimate in sports car feel use the aluminum.
SPEC Clutch is one of the premier clutch and flywheel suppliers to the tuner market. They are often found on the most highly tuned import and domestic vehicles. They are recent players in the German car community with a special focus on the newer turbo BMW models with high torque output. SPEC has been proven time after time to provide superior performance, drivability, and longevity to the most hardcare enthusiasts around the globe.
This item fits the following BMWs: 2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi - Sedan 2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon 2007-2013 E92 BMW 328i 328xi 328i xDrive - Coupe 2007-2013 E93 BMW 328i - Convertible Show More Show Less
