SPEC STEEL FLYWHEEL 07-12 BMW 535I XDRIVE 535I 135I 335IS 335I 3.0L (8-BOLT)
Part #: specSB53S-2
Spec 2009 BMW 535i xDrive/ 2008-2009 BMW 535i 135i/ 2011-2012 BMW 335is/ 2007-2009 BMW 335i 3.0L Steel Flywheel (8-Bolt) - specSB53S-2
Description: Steel Flywheel
SPEC Flywheels are CNC manufactured at an unheard-of .001 tolerance, in an industry where the standard is .010. This precision manufacturing process ensures perfect balance and a perfectly flat bedding surface for the clutch disc, both of which also contribute to the ultimate in safety for competitive environments. All SPEC flywheels carry SFI certification.
The automotive component most responsible for insuring optimum clutch performance and life is the flywheel. The flywheel’s contribution to power transfer is three-fold.
Firstly, the flywheel should provide a consistent and friction enhancing surface for the clutch disc. Flywheels also aid in proper inertia, which is determined by the flywheel weight. Inertia controls the ratio of power to acceleration and can make a vehicle faster or slower based on gear ratio, tire type, vehicle weight, power output and even the location in the powerband output is achieved. The weight of a flywheel and amount of inertia it provides can also effect drivability. Lastly, the flywheel must provide a true balance at rpm, which means no dimensional runout that produces engine damaging and power robbing vibrations and allows smooth engine revolutions.
To allow for specific inertia needs, SPEC flywheels are made in high carbon billet steel and aircraft quality billet aluminum. The aluminum and most steel SPEC units are rebuildable and feature a replaceable steel friction plate that is made from a friction- enhancing steel metal specially formulated for optimum clutch bedding and holding power. The aluminum and steel materials provide a light and medium weight option for all types of racing. SPEC spends a lot of time and effort on research and development of optimum flywheel dimensions and weights for all types of driving and racing and can optimize your MOI (moment of inertia) to maximize your car’s output and performance.
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RETURNS AND REFUNDS
Rush Customs will only handle returns for the direct purchaser. If the purchase was made from a retailer other than rushcustomsllc.com, please contact the place of purchase for further assistance.
You must open and inspect items within 48hrs to confirm no damage and or correct product in order to qualify for a refund or exchange.
Returns on ‘new’ merchandise for exchange or refund will be allowed within 30 days from the date of shipment. ‘New’ merchandise cannot be used or show signs of damage from installation or mounting. If you install or modify parts ordered in any way, you automatically waive your right to returns, refunds or exchanges. Exchange shipping costs is the responsibility of the customer.
All returns must be accompanied with a ‘return merchandise authorization’ (RMA). To receive an RMA, you must contact Rush Customs at firstname.lastname@example.org. When requesting an RMA, please provide the following details: Name, Order Number, Date of Purchase, and Phone Number. Returns will not be processed without an RMA. Returns must also be received within 14 days from the issuance of the RMA. A RMA does not guarantee a refund or replacement.
All returns will be inspected upon return to Rush Customs for return eligibility. Returns must be shipped prepaid by the customers. Please maintain all shipping and tracking information until your return is processed since Rush Customs is not responsible for items lost in shipment. Shipping charges are not refundable. Please include a copy of your original invoice and contact information with all returns.
Eligible returns will be exchanged or refunded less a 20% restocking fee. Refunds will be issued by check or to the credit card used for the original purchase.
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Special order or customized items cannot be cancelled, returned or exchanged.
It is the responsibility of the customer/installer to verify the proper size and application of all parts before installation.
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