BMW Differential and Gearing Upgrades for BMW F87 M2 N55 3.0L

Clear BMW chassis

Please ensure your correct model is selected

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.

Sub-Categories

Sort By:

Turner Dual-Mount Differential Plate - F8X M2 M3 M4
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:588316
Part#: 026773TMS02
In Stock
Sale - Save 25% $ 520.99

This product was last offered at the strikethrough price on
06-14-2026

$ 390.74 USD
Free Shipping
Sale - Save 25%
$ 520.99

This product was last offered at the strikethrough price on
06-14-2026

$ 390.74 USD
Free Shipping
Doubles the mounting points at the rear of the differential to improve bushing longevity and reduces driveline deflection
Powerflex Rear Diff Rear Mounting Bushing - F8X M2,M3,M4
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Powerflex - Corporate Logo
T#:554716
Part#: PFR5-4026
In Stock
$ 109.99 USD
Free Shipping
$ 109.99 USD
Free Shipping
Differential bushings are responsible for keeping the differential in solid alignment while dampening drivetrain vibration. While OE rubber bushings are fine when they are new from the factory, aged and worn out rubber bushings create a multitude of issues that can range from annoying to dangerous. As a factory bushing ages, it begins to harden and become brittle. When this happens the bushing will actually shrink and allow for movement at the differential mounting point. At this point, the differential is free to shift under load causing a noticeable clunking noise under acceleration and deceleration and massively increasing the stress on the driveshaft and axles. Manual transmissions suffer the worst from this as it can make shifting difficult since the differential will shift when the clutch is engaged and disengaged.
Show More Show Less
Rear Diff Mount Bushing - Rear Position (95A) - F80, F82, F83, F87, G...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:589057
Part#: 026696ECS03
In Stock
$ 115.99 USD
Free Shipping
$ 115.99 USD
Free Shipping

Upgrade your drivetrain performance with ECS Tuning Performance Polyurethane Differential Bushings—engineered specifically for BMW F8x/G8x models and designed to deliver superior power transfer, durability, and driving precision.

Factory rubber differential bushings are built for comfort, absorbing vibrations between the differential and chassis during everyday driving. However, they are a known wear item that degrade over time—especially under spirited or aggressive driving conditions. Many F8x/G8x owners experience premature cracking and wear, leading to excessive drivetrain movement, reduced throttle response, and unwanted wheel hop.

ECS Tuning’s in-house engineered polyurethane differential bushings provide a high-performance solution to these common issues. By significantly reducing drivetrain deflection, these upgraded bushings enhance throttle response, improve handling stability, and minimize wheel hop—resulting in a more connected and controlled driving experience.

Constructed from durable 95A durometer red polyurethane and paired with precision CNC-machined 6061-T6 aluminum sleeves, these bushings are built to withstand extreme driveline forces while maintaining street-friendly comfort. Unlike solid or delrin mounts, ECS polyurethane bushings strike the perfect balance between performance and daily drivability—delivering increased rigidity without excessive noise, vibration, or harshness (NVH).

Whether you're carving canyon roads, launching at the drag strip, or simply commuting, these performance differential bushings ensure more efficient power delivery from the differential to the wheels—giving you better throttle modulation, traction, and overall control.

Key Features & Benefits:

Performance polyurethane differential bushings for BMW F8X models
Reduces drivetrain movement and improves power transfer
Enhances throttle response and minimizes wheel hop
95A durometer polyurethane for optimal balance of performance and comfort
CNC-machined 6061-T6 aluminum inserts with Type II black anodizing for corrosion resistance
Resistant to oil, chemicals, ozone, and road salt for extended service life
Designed to handle high torque loads and extreme driving conditions
Engineered using real-world load data and worst-case operating scenarios
Maintains street-friendly NVH levels compared to solid mounts
Replace worn factory bushings with ECS Performance Polyurethane Differential Bushings and experience tighter handling, improved drivetrain response, and long-lasting reliability.

Show More Show Less

ECS Polyurethane 95A Differential Bushing Set - F80 M3, F82, F83 M4 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:589549
Part#: 26696ECS09
In Stock
Sale - Save 25% $ 437.99

This product was last offered at the strikethrough price on
06-14-2026

$ 328.49 USD
Free Shipping
Sale - Save 25%
$ 437.99

This product was last offered at the strikethrough price on
06-14-2026

$ 328.49 USD
Free Shipping
Differential bushings are responsible for keeping your rear end planted during the delivery of power to the rear wheels. As these bushings age, they wear out and should be replaced. If you ever see your bushings are cracked, it is time to replace them. By eliminating the drivetrain deflection that factory rubber bushings permit, throttle response is improved, and the tendency for a car to “Wheel Hop” is significantly reduced. Upgrade to ECS Poly Diff Bushings and feel the difference!
Show More Show Less

Revshift Dual Mount Differential Bushing Kit - 80A (Street - Black) -...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Revshift - Corporate Logo
T#:23449724
Part#: DBK-F8X-80ABL
Ships in 5 Business Days
$ 599.99 USD
Free Shipping
$ 599.99 USD
Free Shipping
Revshift polyurethane differential bushings completely replace the OEM rubber bushings on the BMW F8X M4 / M3 / M2. This kit includes a second rear bushing and a dual mount bracket that adds a mounting point to the subframe. These bushings securely mount the differential, eliminating wheel hop and improving the vehicle's handling capabilities. The two-piece bushing design sandwiches the subframe, locking everything in place. The bushings will not shift while driving, as other one-piece designs allow. The dual mount bracket was carefully designed for strength and a precise fit. This kit is entirely made at Revshift in the USA from our proprietary polyurethane formula and CNC-machined 6061-T6 billet aluminum.
Show More Show Less
Genuine BMW, Hybrid Rear Diff bushing - M2, M3, M4 F8x
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:5457360
Part#: 33179503009
In Stock
13% off MSRP $ 178.99

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

$ 154.99 USD
Free Shipping
13% off MSRP
$ 178.99

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

$ 154.99 USD
Free Shipping
This Updated Genuine BMW hybrid diff bushing helps fix differential clunking noises. 33179503009 replaces weak rubber for better traction and less wheel hop. The ultimate OEM+ drivetrain upgrade for your M-car.
Show More Show Less

F8X M2/M3/M4 Rear Subframe Bolt Kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:389827
Part#: F8XMRSUBBOLTS
Ships in 3 Business Days
$ 201.99

This product was last offered at the strikethrough price on
07-08-2026

$ 199.99 USD
Free Shipping
$ 199.99 USD
Free Shipping
The rear subframe bolts on the M2/M3/M4 are one-time use only and need to be replaced any time they are removed, such as during a diff install, sway bar install, bushing replacement, or any time the subframe is removed. Re-using the original bolts may damage the threads inside the body so make sure you have new M2/M3/M4 subframe hardware on hand for any work.
Show More Show Less
Genuine BMW Differential Oil Pan - F80 M3,F82 M4,F83
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:205324
Part#: 33132284835
Ships in 1-2 days
5% off MSRP $ 147.99

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

$ 140.99 USD
Free Shipping
5% off MSRP
$ 147.99

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

$ 140.99 USD
Free Shipping
Genuine BMW replacement rear differential oil pan. If you have bottomed the rear end of the car out, chances are the pan could have been damaged of the cooling fins become bent.

Genuine BMW Adapter, Front - 33172284774 - F80 M3,F82 M4,F83 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:198743
Part#: 33172284774
Ships in 3 Business Days
3% off MSRP $ 239.99

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

$ 233.99 USD
Free Shipping
3% off MSRP
$ 239.99

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

$ 233.99 USD
Free Shipping


Genuine BMW Adapter, Front -
This item fits the following BMW Chassis:
F80 M3,F82 M4,F83


Genuine BMW Servo Motor, Differential, R - 33142284191
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:174742
Part#: 33142284191
Ships in 3 Business Days
4% off MSRP $ 691.99

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

$ 660.99 USD
Free Shipping
4% off MSRP
$ 691.99

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

$ 660.99 USD
Free Shipping


Genuine BMW Servo Motor, Differential, Right -
This item fits the following BMW Chassis:
F06,F10,F12,F13,F80 M3,F82 M4,F83

Genuine BMW Differential - F8x
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:534336
Part#: 33108090473
Ships in 6 Business Days
4% off MSRP $ 4,834.99

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

$ 4,617.99 USD
Free Shipping
4% off MSRP
$ 4,834.99

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

$ 4,617.99 USD
Free Shipping
The BMW part number **33108090473** is a **differential assembly** designed for select **BMW M models**, playing a crucial role in the drivetrain by distributing engine power to the wheels. It enables smooth cornering and enhances traction by allowing the wheels to rotate at different speeds. ### **Key Features:** - **Gear Ratio:** 3.46:1, providing a balance between acceleration and top-end performance. - **Vehicle Compatibility:** Designed for **BMW M2, M3, and M4 models** (2015–2021). - **OEM Quality:** Genuine BMW part, ensuring durability, reliability, and precise fitment.
Show More Show Less