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Diffsonline - E9X 335/E8X 135 Custom Performance Differentials
E9X 335/E8X 135 Diffsonline Custom Performance Differentials

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Price: $1,299.99

Part Number: 0322

Carrier Type:

Gear Ratio:

Refundable Core Charge:

REM Polishing:


A great upgrade for drivers looking for added acceleration and grip for their E9X 335 and E8X 135.

Changing your cars gearing is one of the most effective performance improvements you can make for the money. For example, swapping from a 3.15 to 3.46 ratio will give your car 10% more torque delivered to the rear wheels! All of our differentials are limited slip units, meaning that both wheels pull - no more wheel spin. We will exchange your current differential for a unit built exactly to your specification. We have every ring and pinion ratio available including extra-short Motorsport ratios.

We have 6 different types of limited slip units available to suit your particular needs**:

  • 2 Clutch - Based off the factory limited slip carrier, this unit is great for street use and is easy on the wallet.
  • 3 Clutch - This 3 clutch unit is designed to further increase the locking abilities of the differential for more aggressive traction and grip. Great for street cars seeing numerous track days per year.
  • 3 Clutch with Custom Engaging Ramp Angles - Our best selling carrier type. The carrier incorporates custom ramp angles built into the carrier for an engagement that is more substantial and track oriented. This unit offers excellent turn-in and the abilities to lay down some serious power earlier during track-out. The unit has proved to greatly reduce track times and as a result, created some very happy customers!
  • Quaife - Unlike a conventional plate-style limited slip differential, the Quaife Helical LSD differential relies on gears rather than clutch plates for its operation. The Quaife helical LSD never locks harshly with a set pre-load of wheel slip across the driven axle. Rather, the Quaife Helical LSD automatically biases the torque away from the spinning wheel across the axle to a constantly varying degree, never locking completely.
  • OS Giken - The increased number of friction discs not only dramatically improved the LSD's locking force, it enables it to lock fully and completely. An added benefit to being a fully locking mechanism is that less heat is generated, thus resulting in incredible durability and reliability.
  • Wavetrac® - Patent pending Wavetrac® design automatically improves grip in low traction conditions. It offers improved no-load performance when compared to other helical gear differentials on the market. It comes standard with carbon-fiber bias plates for the best all around performance and lifetime durability. The Wavetrac® differential will perform a lifetime of service without maintenance or rebuilds.

REM® Ring & Pinion polishing is available for lowering operating temps and reducing driveline loses by reducing friction. Additional charges apply

$95 flat rate shipping/packaging fee.

$1500 core charge is included in price via a mandatory option. Core charge will be refunded upon receipt of your rebuild-able core***. Core MUST be received within two weeks of delivery of replacement unit.

Selecting the best differential type for your application can be a difficult task considering the amount of ratios and limited slip carriers. Please feel free to contact your BimmerWorld sales representative to discuss the best differential for your application.

The ability to rebuild the returned differential will be decided by the differential builder.

REM is a registered trademark of REM Chemicals Inc. registered in the U.S. Patent and Trademark Office.

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