Every Clutch Masters flywheel is proudly designed and manufactured in the USA. Flywheels are first designed in CAD and are then precision CNC machined in house in one of or Haas CNC lathes out of 6061 aluminum or 1045 steel billet cores. After machining, the flywheel is zero balanced to ensure it is evenly weighted on all sides and spins 100% true. Each aluminum flywheel is Type 3 Hard Anodized for the ultimate in durability and protection of the aluminum. All steel flywheels are black oxide coated to add a layer of rust prevention and gives our steel flywheels a unique black finish. The flywheel is then assembled by a Clutch Master Craftsman, double checked for imperfections and tolerances, and is then ready to be paired with one of our FX100-FX500 single disc clutch kits or twin disc options. All flywheels are SFI 1.2 Certified for use in motorsports.. When you're going to be pushing that S55 engine in your F80 or F82 to the next level or you're planning to slide that beauty around on a track, you're going to need a capable clutch kit to make sure that power gets to the ground reliably. Our 850 Series twin disc kits are an excellent upgrade to the factory clutch and paired with a lightweight aluminum flywheel will change the way you feel about your car forever. The F80 is hard not to love from the factory but with a few little bits of extra performance (like our flywheel and twin disc) added here and there it truly is a smile machine. Our FW-795-B-TDA flywheel weighs in at 16 lbs. This flywheel paired with our lightweight aluminum twin disc cover allows for an incredibly lightweight rotating mass freeing up horsepower and increasing rev speeds.. Will not work with OEM clutch kit, flywheel built to work exclusively with FX850 clutch kit.. Replaceable steel insert friction surface, eliminating need of resurfacing the flywheel. Clutch Masters 2015+ BMW M3/M4 3.0L Twin-Disk Aluminum Flywheel. Reduces turbo "lag" in turbocharged vehicles. Lightweight Aluminum Flywheel for FX850. Improved performance for quicker revs. CNC machined and precision balanced. Clutch Masters Clutch Flywheel. Clutch Flywheel. SFI Certified

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