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MFactory BMW E82 E90 F20 F30 Final Drive Gears (M135i, M235i, 135i, 335i & 435i)

Regular price $970.00 USD
Regular price $1,032.00 USD Sale price $970.00 USD
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Achieve the ultimate in acceleration with the MFactory Final Drive Gears. By changing your final gear ratios, you can experience a dramatic increase in acceleration, giving you on average, a 10-15% increase in torque throughout the entire rev-range over the OEM Final Drive.

Diamond Cut to exacting tolerances from Forged High-Nickel-Chromium-Molybdenum Steel
Perfect fitment & finish ensures hassle-free installation & maintenance, each and every time

Designed using leading-edge Solidworks 3D CAD & Cosmos FEA software
Advanced Gear Geometry minimizes parasitic drivetrain losses. Race transmissions built with MFactory components transfer, on average, 1-2% more power to the ground over our competitors! 



  • Made from imported Japanese SAE 8620 and 4320 Steel
  • Forged, Double Tempered and Super Sub-Zero treated for unsurpassed toughness
  • Advanced Shot Peening technology increases surface hardness
  • Advanced gear geometry designed using industry-leading software puts more power to the ground


BMW E82/E88 135i (MT/DCT) - 2.81 Final Drive

BMW E90/E91/E92/E93 335i/335d (MT/DCT) - 2.81 Final Drive

BMW F20/F21/F22/F23 M135i/M235i 2012+ (MT) - 2.81 Final Drive

BMW F30/F31 335i/435i 2012+ (MT) - 2.81 Final Drive


Please Note

Honda B16A2 Fitments: Will not fit models equipped with Factory LSD 

Honda B16A2/16B/18C Fitments: Offering a revised design over our previous generation Final Drive Gears. Forged from stronger steel with a 50% larger tooth profile yet almost 1kg lighter! 

Honda Cable Fitments: Will not fit models equipped with Factory LSD. 92-93 YS1 transmissions should use B16A2 fitments 

Honda '98 Spec Fitments: Designed for the '98 Spec Integra Type-R with Factory 4.785 Final Drive 

Honda H22A Fitments: Will not fit ATTS-equipped transmissions. Is also suitable for Euro-R/Accord Type-R


To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout.



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Due to the nature of For Race Use Only products, MFactory Competition Products will provide a limited 1 year warranty for all Final Drive Gears to be free of defects in materials and workmanship upon receipt of product and time of professional installation. It is the sole responsibility of the buyer/installer to verify the suitability for installation. Parts once used in a running transmission/carrier will not be covered under warranty. Parts returned must be determined by MFactory Competition Products to be defective before any warranty credit or replacement is issued