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MFactory BMW Helical LSD in with FULL Assembly (Carrier)


Product CodeMFAFPZBO97

Earn Reward Points: 1045

Dollar Value of Points: $10.45

Gain a prominent advantage over the competition with the MFactory Helical Limited Slip Differential. Through the smooth and constant distribution of power to the wheels, the MFactory Helical LSD puts the power-to-the-ground and maximises your vehicle's traction. A must for any race car, be it Street, Strip or Track!

335i with manual transmission (up to 2/2007) [BOLTED]

335i with manual transmission (3/2007 to present) [WELDED]
335i with automatic transmission (up to 2/2007) [BOLTED]
335i with automatic transmission (3/2007 to 9/2007) ]WELDED]
335i with automatic transmission (10/2007 to present [BOLTED]
135i with manual tranmission (all) [WELDED]
135i with automatic transmission (all) [BOLTED]

For welded, there are 3 options:

1) LSD only. You will have to do the machine work and installation yourself
2) LSD + Ring & Pinion. No machine work required, but will need to install yourself (Please select appripriate final drive gear)
3) Fully rebuilt Pumpkin (called a "Carrier"). We ship you a pumpkin, you swap it over, then ship us your old pumpkin back  

This product is Option3 and a 500.00 refundable core charge is applied and will be refunded when your old pumpkin is sent back.  Please note when sending pumpkin back it must be the Gear Ratio which was ordered.

Click here to enlarge

Click here to enlarge Manufacturing Process

- SAE9310 Bar Stock imported from Japan to ensure the purest steel grades
- All MFactory components are Forged. We do not use inferior Cast or Billet processes. Forged components are upto 30% stronger & tougher than the equivalent "Billet" component. Click here for further details
- Advanced material processing, heat treatment & finishing techniques offer superior strength, durability and quality
- Primary Heat Treatment: After the forged parts come off the press, they are Normalized and Annealed to relieve residual stresses and make them machine workable
- Machining: After the forged blanks are completed, we use Industry-leading Multi-Axis CNC and CAM equipment to machine the parts
- Secondary Heat Treatment: State-of-the-art Case Hardening procedure achieved via computer-controlled Gas Carburization and Quenching
- Double-Tempering: A superior heat treatment technique used to decrease the brittleness and increase the toughness of our parts
- Surface Grinding: Through the use of our state-of-the-art diamond grinding machines, we ensure all parts are smooth, precise and free of burrs
- Super Sub-Zero Processing: An advanced treatment technique whereby the parts are cryogenically hardened at -300°F, realigning the steels crystalline structure for maximum strength, then heat tempered again for a 3rd time to ensure maximum toughness (resistance to fracture)
- Micro-Peening: Our final treatment stage, the parts are subject to a high speed shot blast with our proprietary micro media, creating a super smooth surface

Click here to enlarge

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