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Wavetrac Rear Limited Slip Differential LSD - 3.15+

BMW E46/E8X/E9X
$2,499.95
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IMPORTANT : SPECIAL NOTES APPLY TO VEHICLE FITMENT FOR THIS PRODUCT, CLICK HERE TO VIEW

Description

True traction, even when one wheel is completely unloaded.

Wavetrac Differentials are advanced helical-gear limited slip differentials designed, engineered, and manufactured in the USA by Autotech Driveline. Unlike conventional torque-biasing differentials, Wavetrac units feature a patented internal cam device that actively maintains drive when one wheel loses load—solving the biggest limitation of traditional helical LSDs.

In situations where a standard torque-biasing differential would act like an open diff and send power nowhere, the Wavetrac cam mechanism generates internal load, ensuring torque continues to be delivered to the wheel with grip. The result is predictable traction, smoother power delivery, and improved performance whether on the street, track, or during aggressive driving.

Built for strength and longevity, Wavetrac differentials use 9310 alloy steel gears housed in case-hardened steel bodies, secured with ARP fasteners for maximum durability. Every unit is backed by a transferable Limited Lifetime Warranty, underscoring Wavetrac’s commitment to performance and reliability.

Important Notes

All welded OEM gear assemblies require machine work. Installation kits are sold separately. Please review application-specific notes prior to installation.

Features and Benefits

  • Patented Wavetrac cam device prevents traction loss during zero-load conditions
  • Maintains drive to the wheel with grip when others would fail
  • 9310 alloy steel gears for extreme strength
  • Case-hardened steel differential body
  • ARP fasteners for superior clamping force
  • Designed, developed, and manufactured in the USA
  • Transferable Limited Lifetime Warranty

Fitment Table

Fitment Notes

General Notes:

  • Fits BMW 188K Axle with final drive ratio over 3.15
  • E46 325i, 328i, 330i A/T 1998-2005. Bolt on Ring gear
  • E9X 325i, 328i, 330i 2006>. Some Ring gears could be welded
  • E9X 335i A/T 9/2007>. Some Ring gears could be welded
  • E8X 135i A/T 2008>. Some Ring gears could be welded
  • E8X 128i 2008>. Some Ring gears could be welded
  • E60 525i, 528i, 530i A/T. Some Ring gears could be welded
  • E8X Z4 2.5i, 3.0i. Some Ring gears could be welded