Clutch Masters 11 BMW 335i/335is E90 Turbo Aluminum Flywheel

This Clutch Masters aluminum flywheel is machined from a solid block of 6061-T6 aluminum, a strong yet lightweight material chosen for its ability to dissipate heat effectively. For your 2009-2012 BMW 135i, this flywheel is designed to reduce rotational mass, which directly impacts how quickly your engine can rev up and down. This means you'll notice a more responsive feel when you press the accelerator or lift off it, making the car feel more eager and agile, especially during spirited driving or track use.

The aluminum construction is key here; it's significantly lighter than a stock dual-mass flywheel, which can often weigh upwards of 30 pounds. By shedding that weight, the engine's inertia is reduced, allowing it to accelerate and decelerate more rapidly. This flywheel features a replaceable steel friction surface, ensuring that wear is concentrated on an easily replaceable part rather than the entire aluminum body. This design choice extends the life of the flywheel and maintains consistent clutch engagement over time.

When installing this flywheel, it's important to follow the manufacturer's recommended torque specifications for the flywheel bolts and the clutch pressure plate bolts to ensure proper seating and prevent damage. Because it's a lighter, single-mass design, you might notice a slight increase in drivetrain noise or chatter at idle compared to the stock dual-mass unit, which is normal for this type of performance upgrade. This flywheel is a solid option if you're looking to enhance your BMW's performance and get a more direct connection to the engine's power delivery.