Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply
affirm financing terms & conditions

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
affirm financing terms & conditions
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

BMW M3 LSD & Differential Upgrades

Sort By
Filter By
Return to Top

Turner F8X M3 & M4 Dual-Mount Differential Plate - With ECS Poly Diff Bushings

ES#4044494 - 026773tms03KT - Turner F8X M3 & M4 Dual-Mount Differential Plate - With ECS Poly Diff Bushings - Pair the Turner Dual Mount Diff plate and ECS Poly Diff Bushing Kit to capitalize on dual rear mounts, improved bushing life, reduced wheel hop, increased handling, and crisper driveline response. - Turner Motorsport - BMW
ECS Tuning recommends this product.

Pair the Turner Dual Mount Diff plate and ECS Poly Diff Bushing Kit to capitalize on dual rear mounts, improved bushing life, reduced wheel hop, increased handling, and crisper driveline response. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4044494
Mfg#:
026773TMS03KT
In Stock
ON SALE! SAVE 25%
$1019.99

This product was last offered at the strikethrough price on
06-13-2026

$764.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Complete Performance Polyurethane Differential Bushing Set - 95A

ES#4043194 - 026696ECS09 - Complete Performance Polyurethane Differential Bushing Set - 95A - Engineered to improve power delivery and handling, with a superior lifespan over factory rubber bushings - ECS - BMW

Engineered to improve power delivery and handling, with a superior lifespan over factory rubber bushings 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4043194
Mfg#:
026696ECS09
In Stock
ON SALE! SAVE 25%
$437.99

This product was last offered at the strikethrough price on
06-13-2026

$328.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Dual Mount Diff Bracket

ES#4658958 - PFR5-4030 - Dual Mount Diff Bracket - This diff bracket prevents the differential from twisting under load - Powerflex - BMW

This diff bracket prevents the differential from twisting under load

Brand:
Powerflex - Corporate Logo
ES#:
4658958
Mfg#:
PFR5-4030
In Stock
$309.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Genuine BMW Final Drive With Differentia

ES#4355397 - 33102283005 - Genuine BMW Final Drive With Differentia - BMW Differential with LSD - Genuine BMW - BMW

BMW Differential with LSD For manual gear cars only

Brand:
Genuine BMW - Corporate Logo
ES#:
4355397
Mfg#:
33102283005
Ships on Aug 5, 2026
4% off MSRP

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

$4351.99

This product was last offered at the strikethrough price on
07-17-2026

$4156.99 USD

E9X M3 Complete Performance Polyurethane Differential Bushing Set - 95A

ES#4070805 - 026711ECS09 - E9X M3 Complete Performance Polyurethane Differential Bushing Set - 95A - OE BMW bushings are quite soft, and can also wear out rather quickly in just a matter of years. If you just picked up a used E9X M3, odds are your vehicle could benefit from differential bushing replacements. - ECS - BMW

OE BMW bushings are quite soft, and can also wear out rather quickly in just a matter of years. If you just picked up a used E9X M3, odds are your vehicle could benefit from differential bushing replacements. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4070805
Mfg#:
026711ECS09
In Stock
ON SALE!
$177.99

This product was last offered at the strikethrough price on
06-13-2026

$169.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turner Dual-Mount Differential Plate

ES#4030564 - 026773tms02 - Turner Dual-Mount Differential Plate - Upgrade your differential to capitalize on dual rear mounts for improved bushing life, reduced wheel hop, and crisper driveline response - Turner Motorsport - BMW

Upgrade your differential to capitalize on dual rear mounts for improved bushing life, reduced wheel hop, and crisper driveline response 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4030564
Mfg#:
026773TMS02
In Stock
ON SALE! SAVE 25%
$520.99

This product was last offered at the strikethrough price on
06-13-2026

$390.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turner F8X M3 & M4 Dual Mount Diff Plate - With Extra Rear Position ECS Poly Bushing

ES#4044497 - 026773tms04KT - Turner F8X M3 & M4 Dual Mount Diff Plate - With Extra Rear Position ECS Poly Bushing - Upgrade your differential to capitalize on dual rear mounts for improved bushing life, reduced wheel hop, and crisper driveline response. Includes ECS polyurethane differential bushing for the secondary mounting location. - Turner Motorsport - BMW

Upgrade your differential to capitalize on dual rear mounts for improved bushing life, reduced wheel hop, and crisper driveline response. Includes ECS polyurethane differential bushing for the secondary mounting location. 10X Entries For Our 25th Anniversary Sweepstakes!
Only for use with Poly Diff Bushings!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4044497
Mfg#:
026773TMS04KT
In Stock
ON SALE! SAVE 25%
$588.99

This product was last offered at the strikethrough price on
06-13-2026

$441.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Limited Slip Differential

ES#2917888 - 30309150WKWVT - Limited Slip Differential - Put all your power to the ground! - Wavetrac - BMW

Put all your power to the ground!

Brand:
Wavetrac - Corporate Logo
ES#:
2917888
Mfg#:
30309150WKWVT
Ships in 2 Business Days
$1245.99 USD
Free Shipping

Performance Polyurethane Differential Bushing - Front Position

ES#2748535 - 002447ECS02 - Performance Polyurethane Differential Bushing - Front Position - ECS engineered to improve power application and provide superior service life over factory rubber bushings - ECS - BMW

ECS engineered to improve power application and provide superior service life over factory rubber bushings 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2748535
Mfg#:
002447ECS02
In Stock
ON SALE! SAVE 25%
$66.99

This product was last offered at the strikethrough price on
06-13-2026

$50.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Complete Performance Polyurethane Differential Bushing Set

ES#2748544 - 002447ECS01KT - Complete Performance Polyurethane Differential Bushing Set - ECS engineered to improve power application and offer superior service life over factory rubber bushings - ECS - BMW

ECS engineered to improve power application and offer superior service life over factory rubber bushings 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2748544
Mfg#:
002447ECS01KT
In Stock
ON SALE! SAVE 25%
$203.99

This product was last offered at the strikethrough price on
06-13-2026

$152.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E9x M3 Upgraded Billet Differential Cover

ES#4830512 - 049395LA - E9x M3 Upgraded Billet Differential Cover - Single piece 6061 construction, optimized cooling, provisions for temp sensor and external cooler with removable air duct. - Turner Motorsport - BMW

Single piece 6061 construction, optimized cooling, provisions for temp sensor and external cooler with removable air duct. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4830512
Mfg#:
049395LA
Ships in 3 Business Days
ON SALE!
Starting at $1095.12 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Differential And LSD Tune

ES#4846087 - bm237haKT - Differential And LSD Tune - Upgrade to a better performing LSD also includes tune. - OS Giken - BMW

Upgrade to a better performing LSD also includes tune.

Brand:
OS Giken - Corporate Logo
ES#:
4846087
Mfg#:
BM237HAKT
Ships in 2 Business Days
$2100.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Helical Limited Slip Differential

ES#2795260 - MF-TRS-05E39 - Helical Limited Slip Differential - 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. - Team MFactory - BMW

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. *Any defects or warranty clams will have to go directly to Team M Factory*

Brand:
Team MFactory - Corporate Logo
ES#:
2795260
Mfg#:
MF-TRS-05E39
Back Ordered
$999.99 USD
Free Shipping
on orders $49 and up

Let us help you find the parts that fit your BMW

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings