Monitor the condition of your differential at each service and remove harmful metallic contaminants from imposing premature wear.
2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat!
Put all your power to the ground!
*​fits ratios of 3.15 and up*
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply For Automatic Transmission for years 2008+
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.
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply Any defects or warranty clams will have to go directly to Team M Factory For vehicles with a manual transmission. This may require machining of your existing differential in order to install new unit. Some cars came from the factory with a welded ring & pinion that must be removed.
Brand:
ES#:
2795354
Mfg#:
MF-TRS-05E92
Ships in 5 Business Days
5% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$1049.99
This product was last offered at the strikethrough price on 10-26-2026
Synthetic gear oil for superior performance in your differential
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Used to seal differential covers and engine oil pans
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
4758137
Mfg#:
5970
In Stock
$55.40
This product was last offered at the strikethrough price on 10-06-2026
Remove harmful metallic contaminants from imposing premature wear on your differential. Easily monitor the condition of your differential with every fluid change. 14mm Hex Socket Head.
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
4031285
Mfg#:
027030TMS01
In Stock
ON SALE!
SAVE 25%
$89.99
This product was last offered at the strikethrough price on 06-13-2026
Seals the axles into the differential
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
4722226
Mfg#:
33108860346
In Stock
2% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$96.58
This product was last offered at the strikethrough price on 10-26-2026
Maximum traction and control whether accelerating or decelerating. Locks axle shafts with a different ratio for each situation. Perfect Compromise between safety and sport.
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply Any defects or warranty clams will have to go directly to Team M Factory For Vehicles with automatic transmission (ring gear machining or new ring&pinion required for manual transmission, diesel, or DCT cars)
Transmit more power to the ground and eliminate driveline slop
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Includes an MFactory Helical LSD, 2 Quarts of Redline 75w90 Diff, an ECS Magnetic plug, and Loctite 5970 gasket maker!
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply For Vehicles with automatic transmission (ring gear machining or new ring&pinion required for manual transmission or DCT fitment)
Allows for traction at all times by providing the most power to the wheel with more grip
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply Includes new pumpkin for a complete bolt-in replacement! Includes $500 refundable core charge. For vehicles with manual transmission with production up to 02/2007
provide an optimal balance between performance and comfort.
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Synthetic gear oil for superior performance in your differential
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Stock or limited-slip, we stock bearings, repair parts, complete differential units, and approved differential fluids so you can keep sending power to the axles without noise, harshness, or vibration.
