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Limited Slip Differentials

BMW stopped using truly limited-slip differentials with the advent of the E9X and E60 platforms. The advantages between an open and limited-slip differential are seconds on the track and a massive increase in corner exit grip. Tuner motorsports offer many different types of LSDs' to suit your driving style and budget.
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Limited Slip Differential - E39 / E9X
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Wavetrac - Corporate Logo
T#:363686
Part#: 30309170WKWVT
In Stock
$ 1,245.50 USD
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$ 1,245.50 USD
Free Shipping

Introducing the Wavetrac® Torque Biasing Differential by Turner Motorsport, the pinnacle of innovation for your BMW. This cutting-edge technology takes your vehicle's performance to a whole new level. With its patented design, the Wavetrac® differential is a trailblazer, automatically enhancing grip when navigating low-traction conditions. Its approach is truly revolutionary, setting it apart from other torque biasing differential designs.

Quality is the hallmark, featuring high-strength 9310 steel gears enclosed in case-hardened billet or forged steel bodies. Throughout the differential, ARP® fasteners are used, ensuring superior durability and performance. What's more, the Wavetrac® differential is virtually maintenance-free, promising a lifetime of service without the need for rebuilds.

To provide added confidence, all Wavetrac® differentials are backed by a transferable limited lifetime warranty, highlighting the product's reliability and longevity.

Important Note for Bolt Kits:

For vehicles equipped with a welded ring gear, the installation process requires the removal, drilling, and installation of the welded ring gear from your stock differential. This intricate task should be entrusted to a professional machine shop. To seamlessly install the ring gear onto the new differential, you'll need Bolt Kit ES4368731. It's imperative to consult your machine shop before purchasing this item and the necessary hardware kit.

Please be aware that no technical drawings or instructions are provided, underscoring the importance of verifying compatibility and ensuring correct installation with your chosen machine shop. Refunds or replacements will not be offered in the event of incorrect ring gear installation or differential failure due to improper installation.

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Limited Slip Differential - S54 3.2L & S65 4.0L Engines
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Wavetrac - Corporate Logo
T#:363875
Part#: 30309165WKWVT
Back Ordered
$ 1,595.00 USD
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$ 1,595.00 USD
Free Shipping

Upgrade your BMW S54 3.2L & S65 4.0L Engines with the Turner Motorsport Wavetrac Limited Slip Differential. Featuring patented Wavetrac® design, this innovative differential automatically enhances grip in low traction conditions, providing superior performance compared to traditional designs. Crafted with high-strength 9310 steel gears and ARP® fasteners, this differential ensures durability and reliability. Maintenance-free and backed by a limited lifetime warranty, the Wavetrac® differential offers peace of mind and exceptional performance for your BMW.

  • Patented Wavetrac® design improves grip in low traction conditions
  • High-strength 9310 steel gears ensure durability
  • Maintenance-free operation for the lifetime of the differential
  • Backed by a limited lifetime warranty for added assurance
  • Enhances performance and driving experience for BMW owners
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Limited Slip Differential - E46
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Wavetrac - Corporate Logo
T#:383304
Part#: 30309175WKWVT
Ships on Oct 14, 2026
$ 1,245.99 USD
Free Shipping
$ 1,245.99 USD
Free Shipping

The Wavetrac® Torque Biasing Differential introduces an innovative solution for BMW enthusiasts. With its patented design, the Wavetrac® differential automatically enhances grip in low-traction conditions, setting it apart from conventional torque biasing differential designs.

Crafted with precision, the Wavetrac® differential features high-strength 9310 steel gears encased in case-hardened billet or forged steel bodies. ARP® fasteners are utilized throughout the differential, ensuring robustness and exceptional performance.

One of the defining features of the Wavetrac® differential is its maintenance-free design. Fresh from the factory, it's engineered to deliver a lifetime of service without the need for regular maintenance or rebuilds. To bolster the commitment to durability, all Wavetrac® differentials come with a transferable limited lifetime warranty.

For those seeking additional technical insights, comprehensive information on the Wavetrac® Differential can be found at this link: Wavetrac Technical Information.

It's important to note that the Wavetrac® differential is compatible with gear ratios of 3.15 and higher.

Important Note for Bolt Kits:

For vehicles equipped with a welded ring gear, the installation of this differential necessitates the removal, drilling, and installation of the welded ring gear from your stock differential. A Bolt Kit ES4368731 is an essential component for installing the ring gear onto the new differential. We strongly recommend consulting with a professional machine shop before purchasing this item and the necessary hardware kit. Please be aware that no technical drawings or instructions are provided, underscoring the importance of verifying compatibility and ensuring correct installation with your chosen machine shop.

It's crucial to be aware that no refunds or replacements will be offered if the differential has been installed or machined, or in the event of incorrect ring gear installation or differential failure due to improper installation.

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Genuine BMW M Performance Limited Slip 2.81 Differential - F22/23 F3X...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW M Performance - Corporate Logo
T#:402424
Part#: 33108659989
In Stock
Sale - Save 8% $ 3,310.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3,062.09 USD
Free Shipping
Sale - Save 8%
$ 3,310.99

This product was last offered at the strikethrough price on
06-25-2026

$ 3,062.09 USD
Free Shipping
Ensure your getting all the power you can to the road with this LSD from BMW Performance

Limited Slip Differential 56.309.191WK
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Wavetrac - Corporate Logo
T#:22723746
Part#: 56309191WK
Ships in 2 Business Days
$ 1,065.99 USD
Free Shipping on orders $49 and up
  • Innovative: Patented Wavetrac® design automatically improves grip in low traction conditions. This feature is truly innovative and unlike any other torque biasing differential design.
  • Superior Materials: High strength 9310 steel gears are used in case-hardened billet or forged steel bodies. ARP® fasteners are used throughout the differential.
  • Maintenance Free: As supplied new, the Wavetrac® differential will perform a lifetime of service without maintenance or rebuilds.
  • Limited LIFETIME Warranty: All Wavetrac® differentials include a transferable, limited lifetime warranty.
  • Show More Show Less
    Limited Slip Differential - E46
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Wavetrac - Corporate Logo
    T#:383305
    Part#: 30309176WKWVT
    Ships in 2 Business Days
    $ 1,245.99 USD
    Free Shipping on orders $49 and up

    Upgrade your BMW E46 with the Turner Motorsport Wavetrac Limited Slip Differential, featuring innovative design and superior materials for enhanced performance. This differential utilizes patented Wavetrac technology to automatically improve grip in low-traction conditions, setting it apart from traditional torque biasing differentials. Here are the key benefits:

    • Innovative design improves grip in low traction conditions
    • High-strength 9310 steel gears ensure durability
    • ARP fasteners used throughout for reliability
    • Maintenance-free operation for the lifetime of the differential
    • Transferable limited lifetime warranty for peace of mind

    For additional technical information, visit: http://www.wavetrac.net/technical.htm

    Fits ratios 2.47 – 3.07.

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    M Performance Limited Slip Differential Kit - 2.81 - F22/23 F3X M240i...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW M Performance - Corporate Logo
    T#:25805756
    Part#: 33108659989KTKT
    Ships in 2 Business Days
    $ 3,366.99 USD
    $ 3,366.99 USD
    Looking to upgrade your stock differential to the BMW M Performance differential? This kit includes the M Performance limited slip diff plus all the hardware necessary to install the diff in your BMW! What exactly does an LSD do you ask? Well, without an LSD your car is effectively only 1 wheel drive, in that it can't supply torque to both wheels at the same time and will only supply torque to the wheel with less grip, which is what the shortfall is to an open differential (what most vehicles have). An LSD only lets the wheels spin at different speeds by a limited amount, which is typically a percentage difference, which is when the differential locks and both wheels get power. This is not how locked differentials work such as in off-road trucks which supply equal torque and rotational speed to both rear wheels at the same time, which can cause issues with handling.
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    Genuine BMW M Performance BMW M Performance Limited-Slip Differential...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW M Performance - Corporate Logo
    T#:222981
    Part#: 33108659987
    Ships in 2 Business Days
    8% off MSRP $ 3,370.00

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 3,100.35 USD
    8% off MSRP
    $ 3,370.00

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 3,100.35 USD
    For the ultimate in track day performance, the M Performance Limited Slip Differential is here! The clutch-type mechanical differential features a 30% lockup on acceleration and 9% lockup on deceleration. The differential works with the existing DSC system to provide excellent traction wet or dry. It uses the stock 3.08 final drive ratio that the stock M235i uses, so fuel economy will not be affected.  This item fits the following BMWs:
    2014+  F22 BMW  228i M235i
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    Limited Slip Differential 56.309.190WK
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Wavetrac - Corporate Logo
    T#:640442
    Part#: 56309190WK
    Ships in 10 Business Days
    $ 975.99 USD
    Free Shipping
    $ 975.99 USD
    Free Shipping

    Boost Traction with Wavetrac® Torque Biasing Differential

    Elevate your vehicle's performance with the revolutionary Wavetrac® Torque Biasing Differential. It boasts a patented design that automatically enhances traction when faced with low-grip conditions, setting it apart from other torque biasing differential systems.

    Manufactured with precision, this superior differential features high-strength 9310 steel gears housed within case-hardened billet or forged steel bodies. The use of ARP® fasteners throughout the differential ensures exceptional durability and reliability.

    What makes the Wavetrac® truly exceptional is its maintenance-free operation. You can rely on it to deliver consistent performance throughout its lifetime, without the need for regular maintenance or rebuilds. Additionally, it comes with a transferable limited lifetime warranty for your peace of mind.

    For in-depth technical information about the Wavetrac® Differential, visit our [Technical Information](http://www.wavetrac.net/technical.htm).

    Show More Show Less