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BMW Differential and Gearing Upgrades

Upgrading various parts of the differential can have tremendous benefits in your car's performance. It's easy to forget that the differential is a source for making your car faster and handle better so it's often overlooked. The engine is not the only place to make the car faster. Our differential options vary from gearing upgrades to limited slip conversions. You can purchase the ring & pinion gear sets on their own (professional installation required) or have us build a diff around your own specifcations. The options are almost endless! Every custom-built diff is fully rebuilt with seals and bearings. We also design and supply bushing options to reduce driveline wind-up, finned differential covers for better cooling, and more!

Ratio Changes - Changing the differential gearing is one of the best and most-effective upgrades you can make on any BMW (old or new). By using a shorter (numerically higher) final drive ratio you are increasing your RPM relative to road speed - this puts you in a more powerful RPM range than before! Since you're in a 'meatier' part of the power band you're now putting down more power/torque to the ground. If you can trade outright top speed for faster acceleration at daily speeds then this is the perfect upgrade for you.

Limited Slip Upgrades - Sadly, many BMWs today are not equipped with a limited slip (posi-traction) differential. BMW has tried to compensate by using traction control that cuts power at the engine or applies the brakes to retard wheel spin (or a combination of both). But nothing beats the function and feel of a a true LSD which may be why BMW continues to use them in M cars. Our LSD upgrades can be done a number of different ways - a factory-type limited slip unit with either 2 or 3 clutch packs, helical type, OS Giken unit, or something truly custom. We can also vary ramp angles and setup to change the limited-slip behavior under acceleration, deceleration, and cornering. Need a custom diff? Call or e-mail to have a quote.

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MFactory 188 Differential Bearings - Pair
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:637214
Part#: MF-TRS-DBE46
In Stock
$ 179.99 USD
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$ 179.99 USD
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Pair of out put shaft differential bearings
Team MFactory Helical Limited Slip Differential (LSD) - BMW E46 E82/8...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:379412
Part#: MF-TRS-05E46A
In Stock
$ 999.99 USD
Free Shipping
$ 999.99 USD
Free Shipping
The best way to gain a prominent advantage over the competition is to do it with the MFactory Helical Limited Slip Differential. The smooth consistent distribution of power to the wheels with the MFactory Helical LSD puts the power to the ground and maximizes your vehicle's traction. A must for any car be it street, strip, or track. What exactly does an LSD do you ask? well without an LSD your car is actually 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 (typically this is 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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Metal Plate Limited-Slip Differential - 1.5/2.0 Way, V2
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:379410
Part#: MF-TRS-10E90B
Back Ordered
$ 999.99 USD
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$ 999.99 USD
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The best way to gain a prominent advantage over the competition is to do it with the MFactory Metal Plate Limited Slip Differential. The smooth consistent distribution of power to the wheels with the MFactory Plate LSD puts the power-to-the-ground and maximises your vehicle's traction. This 2-way differential will provide torque transfer during both acceleration and deceleration. This means that regardless of whether there is load (throttle) being applied to the differential or not, it will lock up during slippage. Ideal for those with track use in mind. What exactly does an LSD do you ask? Well without an LSD your car is actually 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 (typically this is 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. Features: Forged and Cryo-Tempered for unsurpassed toughness Advanced Shot Peening technology for increased surface hardness Coil Spring preload system ensures minimal power loss and maximum response Lower initial pressure ensures maximum durability and chatter-free operation Fully rebuildable with adjustable lock (80-100%) and option for different cam types Available in 1.0, 1.5, and 2.0 way options
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Differential Rebuild Kit M52 2.8L & M54 2.5L / 3.0L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:381007
Part#: MF-TRS-RBSE46
Ships in 3 Business Days
$ 99.99 USD
Free Shipping
$ 99.99 USD
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Ensure optimal performance for your BMW's differential with the Differential Ring Gear Bolt Kit from Turner Motorsport. Whether you've recently upgraded to a Limited-Slip differential or need to restore your existing one, this kit has you covered. It includes 10 high-quality bolts along with new axle seals to provide complete hardware replacement. Trust ECS Tuning to provide everything you need from start to finish for a hassle-free installation process.
  • Complete hardware replacement kit
  • Includes 10 Differential Ring Gear Bolts and new axle seals
  • Ensures optimal performance for your differential
  • Ideal for upgrading to a Limited-Slip differential or restoring your existing one
  • Hassle-free installation process
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Team MFactory Differential Seal and Bearing Kit - E46 E82/88 E9X (wit...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:381009
Part#: MF-TRS-DBE46S
Ships in 8 Business Days
$ 299.99 USD
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$ 299.99 USD
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Installing a new LSD unit or just performing maintenance on your diff? This kit includes 10 Differential Ring Gear Bolts, new axle seals, and new differential bearings to make your project a bit easier.
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Team MFactory Metal Plate Limited-Slip Differential (LSD) - 1.5 Way -...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:379408
Part#: MF-TRS-10E90A
Ships in 8 Business Days
$ 999.99 USD
Free Shipping
$ 999.99 USD
Free Shipping
The best way to gain a prominent advantage over the competition is to do it with the MFactory Metal Plate Limited Slip Differential. The smooth consistent distribution of power to the wheels with the MFactory Plate LSD puts the power to the ground and maximizes your vehicle's traction. This 1.5-way differential works similarly to a 2-way in that it provides torque transfer during both acceleration and deceleration. However, the advantage over a 2-way is that it requires less force to lock the differential. This means that it will allow for different wheel speeds, like when cornering. A 1.5-way differential is typically the best option for track or street use, as it keeps from having one tire skipping or dragging.
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Differential Shim Kit E46 325Ci / 325i / 328Ci / 328i / 330Ci / 330i ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:1762239
Part#: MF-TRS-SKE46
Ships in 3 Business Days
$ 199.99 USD
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$ 199.99 USD
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Streamline the setup process for your Limited Slip Differential (LSD) with this mandatory back-lash setting tool. This custom-designed tool is instrumental in reducing installation time by a whopping 50%! It's important to note that this tool is not part of BMW's offerings. Should there be any defects or warranty-related matters, it's advisable to directly reach out to Team M Factory for prompt resolution.

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Rear Differential Mounts - OEM/Meyle HD Rubber - E46, X3, Z4 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:339943
Part#: E46-MY-DIFF
Ships in 1 Business Day
$ 88.99

This product was last offered at the strikethrough price on
02-26-2026

Starting at $ 55.99 USD
Free Shipping on orders $49 and up
Starting at $ 55.99 USD
Free Shipping on orders $49 and up
These rubber bushings from Meyle are a direct replacement for the stock differential bushings in the E46 3-series, E83 X3 SAV, and Z4 Roadster. If your original bushings are worn (likely around 100,000 miles) these are a great replacement upgrade. The front bushings are the stock OEM type rubber bushings. The rear bushing is a Meyle HD upgrade over stock - about 15% stiffer than the originals. This means the bushing will not flex and twist as much. This puts more power to the wheels since power is no longer used up for 'torquing' the bushing. These are not race bushings; the rubber material is perfectly suitable for street use.

The non-M E46/E83/Z4 models use three differential mounts - two front bushings in the subframe and one rear mount in the diff cover. This set of bushings covers all three. You can opt to include new mounting hardware in the Options list below.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
2004-2010 E83 BMW X3 2.5i X3 3.0i X3 3.0si
2003-2008 Z4 BMW Z4 2.5i Z4 3.0i Z4 3.0si Roadster
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Premium Differential Service Kit - E46 M3, E9X M3, E82 1 M Coupe ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Includes BMW SAF-XJ limited slip differential fluid with FM booster
Packaged by Turner - Corporate Logo
T#:598688
Part#: E46M3DIFSERTMSKT
In Stock
Sale - Save 8% $ 301.99

This product was last offered at the strikethrough price on
05-03-2026

$ 277.83 USD
Free Shipping
Sale - Save 8%
$ 301.99

This product was last offered at the strikethrough price on
05-03-2026

$ 277.83 USD
Free Shipping
Servicing your differential is an important job and should only be completed using high quality components! To ensure our customers are getting exactly what they need, we have put together this limited-slip differential service kit that includes all new fluid from BMW, a new BMW drain plug, and one of our new Titanium Magnetic Differential Drain Plugs!
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Team MFactory 3.46 Pumpkin With Helical LSD - E82/88 135i, E9X 335i/i...
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Team MFactory - Corporate Logo
T#:382799
Part#: MF-TRS-05E9234KT
Ships in 8 Business Days
$ 2,276.99 USD
Free Shipping
$ 2,276.99 USD
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Helical Limited Slip Differential - BMW E46 - with ratio 3.15 or grea...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:379402
Part#: MF-TRS-05E46
Ships in 7 Business Days
$ 999.99 USD
Free Shipping
$ 999.99 USD
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Gain a significant competitive edge with the MFactory Helical Limited Slip Differential, available at Turner Motorsport. This Helical LSD delivers a smooth and consistent distribution of power to your BMW's wheels, optimizing traction on the street, strip, or track. It's an essential addition for any BMW enthusiast.

Curious about the LSD's role? Without it, your car effectively becomes a one-wheel-drive vehicle, supplying torque to the wheel with less grip. The Helical LSD changes the game by allowing both wheels to receive power while limiting the speed difference between them, in contrast to open differentials commonly found in most vehicles.

Key Features:

  • 30-Day Feel the Torque™ Money Back Guarantee: An industry-first assurance that lets you experience the difference. Plus, it's backed by a Limited-Lifetime Warranty for your peace of mind.
  • Forged and Cryo-Tempered: Engineered for extreme durability and longevity, ensuring it can withstand the rigors of competition-level drag racing.
  • Advanced Shot Peening Technology: Enhances surface hardness, making it well-equipped to handle the shocks of competition-level drag racing.
  • Maintenance-Free Gears: Bid farewell to special fluids or rebuilds associated with typical plate LSDs. It's designed for hassle-free ownership.
  • Lock-Free Operation: Ensures there's no adverse impact on steering response.

Break-In Procedure: For optimal performance, it's recommended to change the fluid after the first 3-400 miles of use.

Please note that any defects or warranty claims should be directed to Team MFactory.

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Differential Rebuild Kit Plus 215mm Differential Case
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:381010
Part#: MF-TRS-DBE92S
Ships in 6 Business Days
$ 296.99 USD
Free Shipping
$ 296.99 USD
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Differential Rebuild Kit Plus by Team MFactory

Upgrade your BMW's differential with the Differential Rebuild Kit Plus by Team MFactory. Whether you've recently replaced your differential or upgraded to a Limited-Slip, it's essential to replace the hardware to ensure optimal performance. This comprehensive kit from ECS Tuning includes 10 Differential Ring Gear Bolts, new axle seals, and new differential bearings, providing everything you need for a complete differential rebuild. With high-quality components, you can trust this kit to support your new differential or rebuild your existing unit effectively.

  • Comprehensive kit includes Differential Ring Gear Bolts, axle seals, and differential bearings
  • Ensures optimal performance of your BMW's differential
  • Perfect for differential replacement or upgrades to Limited-Slip
  • High-quality components for reliability and durability
  • Provides all necessary hardware for a complete rebuild
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Rear Differential Service Kit for various BMW Models
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:42133544
Part#: 835225790TKT
In Stock
$ 59.72 USD
Free Shipping on orders $49 and up
The kit includes 2 Quarts of Red line 75w90 - 57904 and brand new Rein rear diff oil drain plug M22x1.5
Team MFactory 3.08 Ring/Pinion With Helical Limited-Slip Differential...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:380589
Part#: MF-TRS-05E9230KT
Ships in 6 Business Days
$ 2,800.00 USD
$ 2,800.00 USD
The best way to gain a prominent advantage over the competition is to do it with the MFactory Helical Limited Slip Differential. The smooth consistent distribution of power to the wheels with the MFactory Helical LSD puts the power-to-the-ground and maximises your vehicle's traction. A must for any car be it stree, strip, or track. What exactly does an LSD do you ask? well without an LSD your car is actually 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 (typically this is 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. Features: Industry first, 30-day Feel the Torque™ money back guarantee, and a Limited-Lifetime Warranty! Forged and Cryo-tempered Advanced Shot Peening technology for increased surface hardness Designed to withstand the extreme shock loads of competition-level drag racing Maintenance-free gears eliminate the need for special fluid or rebuilds associate with typical plate LSDs. Lock-free operation ensures no adverse steering response. *Includes $600 refundable core charge to be refunded once we receive your rebuildable core.* **As a break-in procedure, we recommend changing the fluid after the first 3-400 miles of use.**
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Team MFactory Helical Limited Slip Differential - BMW E39 / E8X / E9X...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:379407
Part#: MF-TRS-05E92
Ships in 4 Business Days
5% off MSRP $ 1,049.99

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

$ 999.99 USD
Free Shipping
5% off MSRP
$ 1,049.99

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

$ 999.99 USD
Free Shipping

Gaining a prominent edge over the competition is now within reach, thanks to the MFactory Helical Limited Slip Differential offered by Turner Motorsport. This Helical LSD ensures a seamless and uniform distribution of power to your BMW's wheels, significantly enhancing traction whether you're on the street, strip, or track. It's an absolute necessity for BMW enthusiasts.

Curious about the LSD's role? Without it, your car essentially operates as a one-wheel-drive machine, delivering torque solely to the wheel with less grip. This is where the Helical LSD shines, as it allows both wheels to receive power by limiting the speed difference between them, in contrast to the open differentials found in most vehicles.

Key Features:

  • 30-Day Feel the Torque™ Money Back Guarantee: An industry-first assurance that enables you to experience the difference. Furthermore, it comes with a Limited-Lifetime Warranty, offering peace of mind.
  • Forged and Cryo-Tempered: Engineered to deliver exceptional durability and extended lifespan, ensuring it can withstand the rigors of even the most demanding challenges.
  • Advanced Shot Peening Technology: Enhances surface hardness, making it well-equipped to handle the shocks experienced in competition-level drag racing.
  • Maintenance-Free Gears: Bid farewell to the hassles associated with special fluids or rebuilds commonly required for plate LSDs. It's designed for a trouble-free ownership experience.
  • Lock-Free Operation: Ensures there's no adverse impact on steering response, delivering a smooth driving experience.

Break-In Procedure: For optimal performance, it's recommended to change the fluid after the first 3-400 miles of use.

Please note that any defects or warranty claims should be directed to Team MFactory.

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Metal Plate Limited-Slip Differential - 1.5/2.0 way
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:379411
Part#: MF-TRS-10E46B
Ships in 6 Business Days
$ 999.99 USD
Free Shipping
$ 999.99 USD
Free Shipping
The best way to gain a prominent advantage over the competition is to do it with the MFactory Metal Plate Limited Slip Differential. The smooth consistent distribution of power to the wheels with the MFactory Plate LSD puts the power-to-the-ground and maximises your vehicle's traction. This 2-way differential will provide torque transfer during both accelleration and deceleration. This means that regardless of whether there is load (throttle) being applied to the differential or not, it will lock up during slippage. Ideal for those with track use in mind. What exactly does an LSD do you ask? Well without an LSD your car is actually 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 (typically this is 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. Features: Forged and Cryo-Tempered for unsurpassed toughness Advanced Shot Peening technology for increased surface hardness Coil Spring preload system ensures minimal power loss and maximum response Lower initial pressure ensures maximum durability and chatter-free operation Fully rebuildable with adjustable lock (80-100%) and option for different cam types Available in 1.0, 1.5, and 2.0 way options These Differentials are dependent on the final gear ratios. *Any defects or warranty clams will have to go directly to Team M Factory*
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Helical Limited Slip Differential - Mini R52+
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:3283361
Part#: MF-TRS-05MIN
In Stock
$ 699.99 USD
Free Shipping
$ 699.99 USD
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When it comes to gaining a significant advantage over your competitors, the MFactory Helical Limited Slip Differential (LSD) is your ultimate ally. This LSD offers a seamless and consistent distribution of power to your vehicle's wheels, allowing you to harness maximum traction and put the power firmly on the ground.

But what does an LSD do, you ask? Well, without an LSD, your car essentially operates as a "1-wheel drive," as it can't deliver torque to both wheels simultaneously. Instead, it directs torque to the wheel with less grip, highlighting the limitations of an open differential, which is standard in most vehicles.

An LSD, on the other hand, permits the wheels to spin at slightly different speeds by a limited amount, typically represented as a percentage difference. It's when the differential locks that both wheels receive power. It's important to note that LSDs function differently from locked differentials, such as those in off-road trucks, which supply equal torque and rotational speed to both rear wheels simultaneously, often causing handling issues.

Key Features:

  • Crafted from imported Japanese SAE 4320 Steel
  • Industry-first 30-day "Feel the Torque™" money-back guarantee, along with a Limited-Lifetime Warranty
  • Forged, double tempered, and super sub-zero treated for unparalleled toughness
  • Utilizes advanced Shot Peening technology to increase surface hardness
  • Engineered to withstand the extreme shock loads of competition-level drag racing
  • Advanced gear geometry designed using industry-leading software, delivering more power to the ground
  • Exclusively uses the highest quality Brighton-Best Hardware
  • Maintenance-free gears eliminate the need for special fluids and rebuilds associated with plate-type LSDs
  • Ensures lock-free operation, preventing adverse effects on steering response
  • Rated for up to ~1000 WHp

As part of the break-in procedure, we recommend changing the fluid after the first 3-400 miles of use.

Warranty:

MFactory Competition Products stands behind the quality of its Helical LSDs. A limited lifetime warranty is provided, ensuring that these LSDs are free of defects in materials and workmanship upon receipt of the product and professional installation. Any part returned must be determined by MFactory Competition Products to be defective before any warranty credit or replacement is issued.

MFactory Competition Products's obligation under the warranty is limited to repairing or replacing, at its discretion, any part proven defective. The customer is responsible for prepaying transportation charges.

It's important to note that the final determination of the suitability of the products for the intended use is the sole responsibility of the buyer. MFactory Competition Products shall not be liable for any special, direct, indirect, incidental, or consequential damages, including claims for delay, loss of profits, or labor that might be claimed as a result of the failure of any part.

Furthermore, MFactory Competition Products shall not be liable for any damage or injury to persons or property resulting from improper installation or misuse of any part covered by this warranty.

Please be aware that there are no other warranties, whether expressed or implied, extending beyond those set forth above.

Note: To ensure a proper fit, you'll need to reuse the old bearings or acquire new bearings and press them onto each end.

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3.08 Pumpkin With Helical LSD - E9X 335i 335is
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:24677080
Part#: E92-215-308KT
Ships in 3 Business Days
$ 2,649.99 USD
Free Shipping
$ 2,649.99 USD
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Upgrade your BMW's drivetrain with this comprehensive kit that includes a new pumpkin for a hassle-free bolt-in replacement. Plus, enjoy the added benefit of a $500 refundable core charge. For any defects or warranty claims, please directly reach out to Team M Factory.

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Team MFactory 3.46 Differential With Helical LSD - E9X 335, E82/88 13...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with manual transmission. Includes $500 core charge. The provided core must be a 3.46 ratio to be accepted.
Team MFactory - Corporate Logo
T#:583624
Part#: E92215346KT
Ships on Jul 29, 2026
$ 2,382.99 USD
Free Shipping
$ 2,382.99 USD
Free Shipping

The best way to gain a prominent advantage over the competition is to do it with the MFactory Helical Limited Slip Differential. The smooth consistent distribution of power to the wheels with the MFactory Helical LSD puts the power-to-the-ground and maximizes your vehicle's traction. A must for any car be it street, strip, or track.

What exactly does an LSD do you ask? Without an LSD your car is actually 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 (typically this is 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.

Features:

Industry first, 30-day Feel the Torque™ money back guarantee and a Limited-Lifetime Warranty!
Forged and Cryo-tempered
Advanced Shot Peening technology for increased surface hardness
Designed to withstand the extreme shock loads of competition-level drag racing
Maintenance-free gears eliminate the need for special fluid or rebuilds associated with typical plate LSDs.
Lock-free operation ensures no adverse steering response.
**As a break-in procedure, we recommend changing the fluid after the first 3-400 miles of use.**

Includes $500 core charge to be refunded when we receive your rebuildable core.

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Team MFactory 2.56 Pumpkin With Helical LSD - E82/88 135, E9X 335 w/ ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:597536
Part#: E92-215-256KT
Ships in 8 Business Days
$ 3,036.99 USD
Free Shipping
$ 3,036.99 USD
Free Shipping
Price includes $500 core charge *Any defects or warranty clams will have to go directly to Team M Factory*

Team MFactory 3.46 Pumpkin With Helical LSD - E9X 335, E82/88 135i ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:384896
Part#: MF-TRS-05E92XKT
Ships in 3 Business Days
$ 2,382.45 USD
$ 2,382.45 USD

The best way to gain a prominent advantage over the competition is to do it with the MFactory Helical Limited Slip Differential. The smooth consistent distribution of power to the wheels with the MFactory Helical LSD puts the power-to-the-ground and maximizes your vehicle's traction. A must for any car be it street, strip, or track.

What exactly does an LSD do you ask? Without an LSD your car is actually 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 (typically this is 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.

Features:

An industry first, 30-day Feel the Torque™ money back guarantee and a Limited-Lifetime Warranty!
Forged and Cryo-tempered
Advanced Shot Peening technology for increased surface hardness
Designed to withstand the extreme shock loads of competition-level drag racing
Maintenance-free gears eliminate the need for special fluid or rebuilds associated with typical plate LSDs.
Lock-free operation ensures no adverse steering response.
**As a break-in procedure, we recommend changing the fluid after the first 3-400 miles of use.**

Includes $500 core charge to be refunded when we receive your rebuildable core.

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BMW E30 E36 Z3 Helical Limited Slip Differential
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:379405
Part#: MF-TRS-05E36
Ships in 6 Business Days
$ 999.99 USD
Free Shipping
$ 999.99 USD
Free Shipping
The best way to gain a prominent advantage over the competition is to do it with the MFactory Helical Limited Slip Differential. The smooth consistent distribution of power to the wheels with the MFactory Helical LSD puts the power-to-the-ground and maximises your vehicle's traction. A must for any car be it stree, strip, or track. What exactly does an LSD do you ask? well without an LSD your car is actually 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 (typically this is 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. Features: Industry first, 30-day Feel the Torque™ money back guarantee, and a Limited-Lifetime Warranty! Forged and Cryo-tempered Advanced Shot Peening technology for increased surface hardness Designed to withstand the extreme shock loads of competition-level drag racing Maintenance-free gears eliminate the need for special fluid or rebuilds associate with typical plate LSDs. Lock-free operation ensures no adverse steering response. **As a break-in procedure, we recommend changing the fluid after the first 3-400 miles of use.**
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Rear Differential Mounts - OEM Rubber - E82, E9X
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:386282
Part#: E9X-DIFF-MOUNTS
Ships in 1-2 days
$ 193.25 USD
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$ 193.25 USD
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This package of OEM E82 E90 E92 diff mounts replaces the stock rubber diff bushings. On a tuned 335i you may have noticed more driveline shudder or problems hooking up during hard launches. What happens is the stock rubber bushings are under constant flex as engine torque is transmitted through the differential. Under normal driving with a stock car the bushings are rarely stressed. But factor in significant additional torque from a tuned N54/N55 and the stock rubber will quickly show its weaknesses. You may have even broken a diff bolt or two as the heavy differential shifts around. Even non-turbo E82 and E9X models may benefit from fresh bushings.

This is a set of stock rubber bushings, made by OEM supplier Lemforder. They are the same as the Genuine BMW E9X diff mount bushings, but without the more expensive branding. If you're turned off by potential side effects of urethane or Delrin then the OEM diff mounts are your best option. The OEM mounts fit and perform just like the originals so there is no second guessing their quality. If you're looking for an upgrade we offer E9X solid Delrin and aluminum diff mounts that work well, even in street applications.

E9X Diff Mount Set includes:

  • 33176760287 x 2, front differential mount
  • 33176770866 x 1, rear differential mount
  • (new hardware is optional and can be ordered separately below)

    This item fits the following BMWs:
    2008-2012 E82 BMW 128i 135i
    2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi 335d 335i 335xi 335i xDrive - Sedan
    2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
    2007-2013 E92 BMW 328i 328xi 328i xDrive 335i 335is 335xi 335i xDrive - Coupe
    2007-2013 E93 BMW 328i 335i - Convertible
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E46 Finned Differential Cover Upgrade Kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:401688
Part#: 33117512980KT
Ships in 2 Business Days
$ 366.99 USD
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$ 366.99 USD
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The perfect upgrade for any E46, this finned differential cover increases cooling to the rear differential to prevent over heating and possible damage. This is a complete kit including fluid and drain plugs.

Includes the following

  • Aluminum finned differential cover
  • Drain & fill plug with sealing o-ring
  • 2 Quarts of Redline 75w90
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ECS & Turner Performance Drivetrain Bushing Package - E82/88 E9X N52 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:24344778
Part#: ECSTMSPDBKT
In Stock
Sale - Save 8% $ 1,190.99

This product was last offered at the strikethrough price on
05-03-2026

$ 1,096.14 USD
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Sale - Save 8%
$ 1,190.99

This product was last offered at the strikethrough price on
05-03-2026

$ 1,096.14 USD
Free Shipping on orders $49 and up
Turner recommends running drivetrain mounts of all the same variety - if you are using poly engine mounts, you should also use poly transmission mounts. This kit is your solution to make sure all components of your vehicle are working with each other to achieve the performance you're looking for. Polyurethane material is more resistant to water, ozone, and chemicals, maintaining its resiliency and elasticity longer than conventional rubber. Keep your vehicle planted for spirited driving while having crisper throttle response and reduce drivetrain movement along with wheel hop. Kit includes: Turner Engine Mount Set - 60A Polyurethane ECS Transmission Mount Set - Street 70A Polyurethane ECS Differential Bushing Set - 95A Polyurethane ECS Subframe Mount Set - 95A - Polyurethane
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Performance Differential Cover install kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:556968
Part#: 33112282482KT3
Ships on Sep 4, 2026
Sale - Save 7% $ 676.14

This product was last offered at the strikethrough price on
05-03-2026

$ 627.61 USD
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Sale - Save 7%
$ 676.14

This product was last offered at the strikethrough price on
05-03-2026

$ 627.61 USD
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This kit includes Turner Motorsport solid aluminum differential race mounts pre installed in the differential cover for a quick install. These mounts where developed by Turner Motorsport for their Grand-Am Cup E46 M3 race cars, the advantages of solid aluminum mounts is increased suspension & drivetrain response, less drivetrain loss resulting in more wheel horsepower, and longevity - they effectively last forever. These CNC-machined mounts are a direct replacement for the stock rubber pieces, and have been lightened to remove excess weight. 

 

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BMW S38 Helical Limited Slip Differential
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:379403
Part#: MF-TRS-05E39
Back Ordered
$ 999.99 USD
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$ 999.99 USD
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Allows for traction at all times by providing the most power to the wheel with more grip. Unlike plate differentials (1,1.5,2-way) helical LSDs can supply different spin rates to each axle, like when cornering.
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2.81 Pumpkin With Helical LSD
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:25573478
Part#: MF-TRS-05E92DKT
Ships in 4 Business Days
$ 2,689.99 USD
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$ 2,689.99 USD
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Metal Plate Limited-Slip Differential - 1.0 Way
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:379404
Part#: MF-TRS-10E90
Ships in 6 Business Days
$ 999.99 USD
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$ 999.99 USD
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The best way to gain a prominent advantage over the competition is to do it with the MFactory Metal Plate Limited Slip Differential. The smooth consistent distribution of power to the wheels with the MFactory Plate LSD puts the power-to-the-ground and maximises your vehicle's traction. This 1-way differential will provide torque transfer only during acceleration. This set up works the best for the drag race minded drivers. What exactly does an LSD do you ask? Well without an LSD your car is actually 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 (typically this is 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. Features: Forged and Cryo-Tempered for unsurpassed toughness Advanced Shot Peening technology for increased surface hardness Coil Spring preload system ensures minimal power loss and maximum response Lower initial pressure ensures maximum durability and chatter-free operation Fully rebuildable with adjustable lock (80-100%) and option for different cam types Cam type provides the option for 2 distinct levels of initial torque transfer Available in 1.0, 1.5, and 2.0 way options
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Metal Plate Limited-Slip Differential - 1.0 Way
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:379409
Part#: MF-TRS-10E46
Ships in 6 Business Days
$ 999.99 USD
Free Shipping
$ 999.99 USD
Free Shipping
The best way to gain a prominent advantage over the competition is to do it with the MFactory Metal Plate Limited Slip Differential. The smooth consistent distribution of power to the wheels with the MFactory Plate LSD puts the power-to-the-ground and maximises your vehicle's traction. This 1-way differential will provide torque transfer only during accelleration. This set up works the best for the drag race minded drivers. What exactly does an LSD do you ask? Well without an LSD your car is actually 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 (typically this is 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. Features: Forged and Cryo-Tempered for unsurpassed toughness Advanced Shot Peening technology for increased surface hardness Coil Spring preload system ensures minimal power loss and maximum response Lower initial pressure ensures maximum durability and chatter-free operation Fully rebuildable with adjustable lock (80-100%) and option for different cam types Cam type provides the option for 2 distinct levels of initial torque transfer Available in 1.0, 1.5, and 2.0 way options *Any defects or warranty clams will have to go directly to Team M Factory*
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Complete Xdrive Differential And Transfer Case Service Kit - E90, E91...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:42099854
Part#: 07512293972T3KT
In Stock
Sale - Save 12% $ 303.99

This product was last offered at the strikethrough price on
05-03-2026

$ 268.70 USD
Free Shipping on orders $49 and up
Sale - Save 12%
$ 303.99

This product was last offered at the strikethrough price on
05-03-2026

$ 268.70 USD
Free Shipping on orders $49 and up
Maintain smooth power distribution, protect your drivetrain, and extend the life of your BMW xDrive system with the Complete Xdrive Differential And Transfer Case Service Kit - E90, E91, E92, E60, E61, E70.
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Metal Plate Limited-Slip Differential - 1.5 Way
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:379401
Part#: MF-TRS-10E46A
Ships in 6 Business Days
$ 999.99 USD
Free Shipping
$ 999.99 USD
Free Shipping
The best way to gain a prominent advantage over the competition is to do it with the MFactory Metal Plate Limited Slip Differential. The smooth consistent distribution of power to the wheels with the MFactory Plate LSD puts the power-to-the-ground and maximises your vehicle's traction. This 1.5-way differential works similar to a 2-way in that it provides torque transfer during both accelleration and decelleration. However, the advantage over a 2-way is that it requires less force to lock the differential. This means that it will allow for different wheel speeds, like when cornering. A 1.5-way differential is typically the best option for track or street use, as it keeps from having one tire skipping or dragging. What exactly does an LSD do you ask? Well without an LSD your car is actually 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 (typically this is 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. Features: Forged and Cryo-Tempered for unsurpassed toughness Advanced Shot Peening technology for increased surface hardness Coil Spring preload system ensures minimal power loss and maximum response Lower initial pressure ensures maximum durability and chatter-free operation Fully rebuildable with adjustable lock (80-100%) and option for different cam types Available in 1.0, 1.5, and 2.0 way options *Any defects or warranty clams will have to go directly to Team M Factory*
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Metal Plate Limited-Slip Differential - 1.5 Way E46 / E8X / E9X ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:15478740
Part#: TRS-10E90B-1.5
Ships in 6 Business Days
$ 999.99 USD
Free Shipping
$ 999.99 USD
Free Shipping

Unleash the full potential of your BMW and gain a competitive edge with the Turner Motorsport MFactory Metal Plate Limited Slip Differential. Engineered for superior performance, this differential ensures a smooth and consistent distribution of power to the wheels, maximizing traction and putting the power firmly on the ground. The 1.5-way design provides torque transfer during acceleration and halfway through deceleration, making it an ideal choice for those focused on track use.

  • Prominent advantage with the MFactory Metal Plate Limited Slip Differential.
  • Maximizes traction for enhanced vehicle performance.
  • 1.5-way design for torque transfer during acceleration and deceleration.
  • Turns your car into a true 2-wheel drive, improving grip.
  • Ideal for track enthusiasts seeking superior handling.

Upgrade your BMW's drivetrain with the Turner Motorsport MFactory Metal Plate Limited Slip Differential for unmatched toughness and performance.

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BMW M Performance Limited-Slip Differential With Solid Delrin Mounts ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:55353632
Part#: 33108659987KT2
Ships in 2 Business Days
New Item
$ 3,481.99 USD
$ 3,481.99 USD
Under hard acceleration, that stock rear diff twists, flexes, and deflects. Robbing your car of power
Front Differential Input Seal Kit - E46, E53, E60, E61, F30
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:41289766
Part#: 31521428678TKT
Back Ordered
$ 52.99

This product was last offered at the strikethrough price on
07-06-2026

$ 50.99 USD
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$ 50.99 USD
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This kit comes with the seal and both dust covers needed to re-seal your vehicles input shaft on the front differential.