MFactory BMW Final Drive Gears – E8X E9X F2X F3X Upgrade for M135i, M235i, 135i, 335i and 435i
Transform the way your BMW drives with the MFactory Final Drive Gears. This ring and pinion gear set is the ultimate BMW differential ratio upgrade for faster acceleration, sharper response and stronger drivetrain performance. By changing your final drive ratio you can expect a dramatic increase in acceleration with an average 10 to 15 percent increase in torque across the entire rev range compared with the OEM final drive. Ideal for fast road, track day and drag use, and a proven performance upgrade for BMW M135i, M235i, 135i, 335i and 435i models.
At Nforcd we trust MFactory for serious BMW driveline performance. We use these gears on our own builds and our customers love the instant pick up and real-world gains. If you want your E82, E88, E90, E91, E92, E93, F20, F21, F22, F23, F30 or F31 to launch harder and pull stronger, this BMW final drive gear set is a must-have upgrade.
Why choose MFactory Final Drive Gears
- Faster acceleration – shorter gearing delivers stronger real-world performance and quicker in-gear response
- Proven gains – average 10 to 15 percent increase in torque across the rev range versus OEM final drive
- More power to the ground – advanced gear geometry minimises parasitic drivetrain losses, with race transmissions built on MFactory parts transferring on average 1 to 2 percent more power to the wheels than competitors
- Precision engineered – diamond cut to exacting tolerances for perfect fitment and smooth operation
- Motorsport grade materials – forged from imported Japanese SAE 8620 and 4320 steel with a high nickel chromium molybdenum content for strength and durability
- Extreme heat treatment – forged, double tempered and super sub-zero treated for outstanding toughness and wear resistance
- Advanced Shot Peening – increases surface hardness for long-term reliability under high load
- Designed with SolidWorks 3D CAD and Cosmos FEA – optimised ring and pinion gear profile for strength, efficiency and quiet operation
Compatibility
Direct-fit MFactory BMW final drive gears for manual and DCT models as listed:
- BMW E82 and E88 135i (MT and DCT) – 2.56 final drive
- BMW E90, E91, E92, E93 335i and 335d (MT and DCT) – 2.56 final drive
- BMW F20, F21, F22, F23 M135i and M235i 2012+ (MT) – 2.56 final drive
- BMW F30, F31 335i and 435i 2012+ (MT) – 2.56 final drive
If you are unsure, we offer a free compatibility check before dispatch. Simply provide your UK registration or the last 7 digits of your VIN at checkout.
Specifications
- Material: Japanese SAE 8620 and 4320 forged steel
- Heat treatment: forged, double tempered and super sub-zero treated
- Surface treatment: advanced Shot Peening
- Manufacturing: diamond cut to ultra-tight tolerances
- Design: SolidWorks 3D CAD and Cosmos FEA optimised gear geometry
Perfect for
- BMW final drive upgrade for E8X E9X F2X F3X platforms
- BMW M135i final drive ratio upgrade
- BMW M235i final drive gear set
- BMW 135i ring and pinion upgrade
- BMW 335i and 435i differential gear ratio change
- Fast road, track day and drag racing builds seeking quicker acceleration
Professional fitting and setup
Correct installation and ring and pinion setup is essential for performance and longevity. We strongly recommend professional fitting with proper backlash and contact pattern checks.
Nforcd offers expert supply and fitting in Warwickshire. Request a quote: Sales@nforcd.com
Compatibility check
To ensure the part fits your vehicle, we will run a compatibility check prior to dispatch. Provide your UK registration or the last 7 digits of your VIN at checkout.
Part number
MF-TRS-02E25
Manufactured by
MFactory
Warranty
Due to the nature of For Race Use Only products, MFactory Competition Products provides 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 or installer to verify the suitability for installation. Parts once used in a running transmission or 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.
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