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BMW Performance Rear Differentials

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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. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4044494
Mfg#:
026773TMS03KT
In Stock
ON SALE! SAVE 20%
$999.99

This product was last offered at the strikethrough price on
05-02-2026

$799.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2847774 - 30309170WKWVT - Limited Slip Differential - Put all your power to the ground! - Wavetrac - BMW

Put all your power to the ground! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wavetrac - Corporate Logo
ES#:
2847774
Mfg#:
30309170WKWVT
Ships in 1-2 days
$1245.50 USD
Free Shipping
ES#2917892 - 30309175WKWVT - Limited Slip Differential - 188 (Small Diff Housing) - Put all your power to the ground!
*fits ratios of 3.15 and up* - Wavetrac - BMW

Put all your power to the ground! *​fits ratios of 3.15 and up* affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wavetrac - Corporate Logo
ES#:
2917892
Mfg#:
30309175WKWVT
Ships on Sep 10, 2026
$1245.99 USD
Free Shipping
on orders $49 and up
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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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
ES#4758304 - 33108659989ktKT - M Performance Limited Slip Differential Kit - 2.81 - Includes an M Performance diff and all the replacement hardware required for installation - Genuine BMW M Performance - BMW

Includes an M Performance diff and all the replacement hardware required for installation affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For automatic models only

Brand:
Genuine BMW M Performance - Corporate Logo
ES#:
4758304
Mfg#:
33108659989KTKT
Ships in 3 Business Days
$3365.99 USD
This product is lifetime replacement eligible Partial Replacement
ES#3188357 - mf-trs-05e92dKT - 2.81 Pumpkin With Helical LSD - 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. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Any defects or warranty clams will have to go directly to Team M Factory

Brand:
Team MFactory - Corporate Logo
ES#:
3188357
Mfg#:
MF-TRS-05E92DKT
Ships in 4 Business Days
$2689.99 USD
This product is lifetime replacement eligible Lifetime Replacement
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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4030564
Mfg#:
026773TMS02
In Stock
ON SALE! SAVE 30%
$509.99

This product was last offered at the strikethrough price on
05-02-2026

$356.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4759628 - VTT-X3M-REAR-IN1 - VTT F9X X3/4M Rear Bushing Insert Kit - Vargas Turbo Technologies - BMW

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4759628
Mfg#:
VTT-X3M-REAR-IN1
In Stock
$139.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2917889 - 30309165WKWVT - Limited Slip Differential - Put all your power to the ground! - Wavetrac - BMW

Put all your power to the ground! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wavetrac - Corporate Logo
ES#:
2917889
Mfg#:
30309165WKWVT
Ships on Jun 26, 2026
$1595.00 USD
Free Shipping
ES#2917888 - 30309150WKWVT - Limited Slip Differential - Put all your power to the ground! - Wavetrac - BMW

Put all your power to the ground! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wavetrac - Corporate Logo
ES#:
2917888
Mfg#:
30309150WKWVT
Ships in 2 Business Days
$1245.99 USD
Free Shipping
ES#4759614 - VTT-F9X-LDK - F9X X3/4M Billet Diff Lock Down Kit  - Fix The Drivetrain Flaw That Plagues Your X3M and X4M - Vargas Turbo Technologies - BMW

Fix The Drivetrain Flaw That Plagues Your X3M and X4M affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4759614
Mfg#:
VTT-F9X-LDK
Ships in 10 Business Days
Starting at $314.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
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. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 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 30%
$576.99

This product was last offered at the strikethrough price on
05-02-2026

$403.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2917934 - 303091652WKWVTKT - Limited Slip Differential Kit - Put all your power to the ground! - Wavetrac - BMW

Put all your power to the ground! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wavetrac - Corporate Logo
ES#:
2917934
Mfg#:
303091652WKWVTKT
Ships on Jun 26, 2026
$1994.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#4841518 - 056350LA01 - E8X/E9X Open Differential Weld Plates - Convert your open differential to a locked differential without the costly expense of an limited-slip conversion. - ECS - BMW

Convert your open differential to a locked differential without the costly expense of an limited-slip conversion. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4841518
Mfg#:
056350LA01
In Stock
ON SALE! SAVE 25%
$29.99

This product was last offered at the strikethrough price on
05-02-2026

$22.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4044501 - 26773tms05KT - Turner F8X M3 & M4 Dual Mount Diff Plate - With Extra Rear Position OE Bushing - Turner Dual Mount Diff Plate with an Extra Genuine OE rear position bushing for the second subframe differential mount to capitalize on dual rear mounts, improved bushing life, reduced wheel hop, increased handling, and crisper driveline response. - Turner Motorsport - BMW

Turner Dual Mount Diff Plate with an Extra Genuine OE rear position bushing for the second subframe differential mount to capitalize on dual rear mounts, improved bushing life, reduced wheel hop, increased handling, and crisper driveline response. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4044501
Mfg#:
26773TMS05KT
In Stock
ON SALE! SAVE 25%
$611.99

This product was last offered at the strikethrough price on
05-02-2026

$458.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4733183 - 046894la01KT - E53 X5 Ratcheting Rear Locker Kit - Medium Case - DIY-friendly, Ratcheting "Lunchbox" style locker to transform your E53 into a fully capable off-road weapon! - ECS - BMW

DIY-friendly, Ratcheting "Lunchbox" style locker to transform your E53 into a fully capable off-road weapon! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4733183
Mfg#:
046894LA01KT
Ships in 1 Business Day
ON SALE!
$664.99

This product was last offered at the strikethrough price on
05-02-2026

$631.74 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

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