SKU: 6214799225

KMP BMW F8X Drexler Differential

$2655.00 $2950.00
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

KMP BMW F8X Drexler DifferentialThe KMP Motorsport Bolt On Differential is a high performance upgrade designed for motorsport and endurance racing. This complete unit replaces the electronic GHAS differential with a Drexler Limited Slip Differential (LSD) and KMP Motorsport final drive, delivering superior reliability, strength, and performance for high demand applications. Mechanical LSD for Endurance Racing Unlike the servo operated Active M Differential, the KMP Motorsport

The KMP Motorsport Bolt-On Differential is a high-performance upgrade designed for motorsport and endurance racing. This complete unit replaces the electronic GHAS differential with a Drexler Limited Slip Differential (LSD) and KMP Motorsport final drive, delivering superior reliability, strength, and performance for high-demand applications.

Mechanical LSD for Endurance Racing

Unlike the servo-operated Active M Differential, the KMP Motorsport Differential features a mechanical plated LSD, offering consistent, predictable performance. With reduced heat generation and enhanced durability, this unit is ideal for continuous, high-endurance racing.

  • Racing-Specific Configuration: Ramp angles and preload are precisely tuned for motorsport use.
  • Predictable Performance: Provides reliable and consistent grip in all racing conditions.

Optimised Final Drive Ratio (3.91)

The KMP Motorsport Differential utilises an optimised final drive ratio of i=3.91, compared to the stock 3.46 ratio, delivering 13% more wheel torque in all gears. This enhancement improves acceleration and wheel torque, giving drivers a competitive edge on the track.

Advantages Over BMW Motorsport Differentials:

  • Replaceable final drive as a wear part for extended service life.
  • Longer gear lifespan due to a motorsport-specific tooth profile.
  • Serviceable components reduce long-term costs.

Key Features and Benefits of the KMP Motorsport Differential

Replaceable Final Drive

Extend the lifespan of the differential by replacing the final drive instead of the entire unit.

Lightweight Construction

Reduces rotational mass for improved efficiency.

Enhanced Strength

Built with high-quality materials to withstand motorsport demands.

Tailored Ramp Angle and Preload

Configured specifically for racing conditions.

Compatibility and Installation Notes

  • Driveshaft Requirements: Requires either two left OEM driveshafts or KMP driveshafts.
  • Software Adjustment: The OEM electronic LSD must be disabled in the software prior to installation; assistance is available.
  • Material Compatibility: Compatible with steel shafts only; not suitable for carbon driveshafts due to spline differences.
  • F87 M2 (Standard): Contact KMP prior to purchase for compatibility verification.
  • Oil Requirements: Delivered without oil; recommended use is 75W140 oil (0.9–1.0 litre), such as Motul or Mobil.

Transport, Packaging, and Deposit System

  • High-Quality Crate: Shipped in a reusable wooden crate for secure transport.
  • Deposit/Exchange Option: KMP offers a deposit system to ensure short lead times. Customers pay a deposit upfront, refundable upon return and inspection of the original differential.

Why Choose the KMP Motorsport Bolt-On Differential?

  • Superior durability and performance for high-endurance motorsport.
  • Enhanced wheel torque with optimised final drive ratio.
  • Serviceable design reduces long-term costs.
  • Reliable and consistent performance for racing conditions.

Upgrade Your BMW with KMP Motorsport Precision

The KMP Motorsport Bolt-On Differential offers exceptional reliability, strength, and performance for high-performance BMW models. Tailored for track and endurance racing, this differential redefines drivetrain optimisation.

*Please Note: This is a non returnable part.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 6214799225

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4.2 ★★★★★
Based on 1124 reviews
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Product Reviews
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Verified Purchase
Loren Crea
Whiting, US
★★★★★ 5
Great value!
Actually fits the hub better than the OEM cap.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 2, 2024
R
Verified Purchase
RickF
Belleville, US
★★★★★ 5
Good buy and good replacement for stock
I can’t keep these on my UTV, so it’s good to find a reasonably priced alternative.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 17, 2024
E
Verified Purchase
Edward Podhirny
Phoenix, US
★★★★★ 5
Definitely keeps your hands warm !!
Color: Black
These fit nicely on a H.D. Road King. If you bike has heated grips you can drive in 30 deg F weather with only a thin pair of leather gloves. Update: They kept our hands toasty with the heaters on Level 2 and just wearing a thin pair of leather gloves (for grip) while riding in temps down in the low 30's, high 20's. I would definitely recommend these... the photo in the ad is pretty indicative of how they fit on handlebars. They're really designed for ATV's that have no turn signal lamps on the handlebars. Without modification, they do cover the handlebar mounted turn signals on a Sportster, but not on a Roadking. The draw string that seals the mittens around the handlebar could have a more positive grip to stay closed... we wound up double tying it around bar and that works great. The thing we like most aside from how warm they are (the lining feels great)... is that the cuffs are fairly rigid and don't collapse when you take you hands out (like the photo) which makes it super easy to pull you hands out and put 'em back in again. That's really important at a stop light, but even more important when flying down the road at highway speeds... you just can't afford to be fooling around trying to thread your hands and a coat sleeve back into mittens that are limp and flop down closed when you take you hands out... I hope this help... be safe !!
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Reviewed in the United States on January 4, 2020
N
Verified Purchase
Nicole Hawkins
Massapequa, US
★★★★★ 5
Great
Color: Black
Great choice for outdoor activities.. warm.. fits well.. love the look and design… waterproof
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Reviewed in the United States on December 27, 2025
A
Verified Purchase
Amazon Customer
San Leandro, US
★★★★★ 4
If your hands are cold or wet after knowing these handlebar covers exist, well, that’s on you.
Color: Black
These atv gloves, mitts, handlebar covers, whatever you want to call them are a fantastic value. I was honestly surprised at the quality of construction. They have a soft comfortable cotton lining that seems to really hold heat from your hands. The cordura outside is super strong and the seams are very well done. There is a zip along the inside bend to allow for expansion over bigger controls to to allow for use with heavier gloves. (Just leave it unzipped) The draw string to tighten and secure the end to the handlebar is easily to operate and keeps everything snug and in place. It takes about 5 seconds to put each side on or take off. The draw string on the covers is about 5 times longer than necessary and I ended up cutting a foot or so off. The down side of these is how snug a fit they have to the contour of the handlebars and controls. The material is pretty stiff, so you have to be careful. I was getting back on my Polaris 570 after stopping and I typically just leave my fourwheeler in high, so when I leaned forward on my handlebars the covers were stiff enough to push my throttle. Thank goodness nothing was in front of me, or was around to witness my panic. Ha. If I turn to sharply I have to be mindful of the material pressing against my hand and thus the throttle. It does Unzip at the elbow of the covers, but the seams are so stiff there is still resistance. I wish there was a softer material at the hand and bend, however the rigidity really makes it easy to slide your hands/arms (5’8” with alligator arms and they just about come to my elbows) in and out easily, even with a heavy coat. They are indeed 100 waterproof, as unfortunately tested on 2 occasions. They are 112% windproof and I can comfortably ride all day at 35-40 degrees with no gloves(I live in west Alabama so sub 40 degrees is cold for me.) They have been an absolute game changer for the early morning drive in at the hunting club. They are a little stiff for sharp turns on wooded trails, but I expect they will soften with use. Be mindful of the throttle and KNOW YOUR CONTROLS as they will be covered, but do yourself a favor and get these. If your hands are cold driving your fourwheeler after knowing these exist, well, it’s your own fault.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 18, 2021

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