Wavetrac Helical Limited Slip Differential (ATB Torque Biasing LSD) for BMW F87 M2/M2 Competition, F80 M3, F82/F83 M4, F10 M5, F13/F16 M6 - Performance Diff Upgrade, E-Diff Replacement

Wavetrac Helical Limited Slip Differential Upgrade for BMW F-Series M Cars

Transform traction, corner exit speed and day-to-day drivability with the Wavetrac helical limited slip differential. Engineered and manufactured in the USA by Autotech Driveline, this premium torque-biasing unit is a superb replacement for the factory active unit, delivering predictable grip and consistent performance on the road and at the circuit.

Why it outperforms the stock unit

• Patented wave-cam technology keeps drive to the wheel with grip, even when the opposite wheel is unloaded. No more open-diff behaviour mid kerb, over crests or in low-speed hairpins.
• Smooth, progressive torque transfer for confident throttle application and stable corner exits.
• Resistant to heat fade that can make the standard system feel inconsistent after hard use.
• Excellent fast-road manners with superior traction in wet or dry conditions.

Built to take serious power

• 9310 alloy steel gearset inside a case-hardened body for exceptional strength and longevity.
• Premium ARP hardware for rock-solid reliability.
• Transferable Limited Lifetime Warranty, honoured even for pure motorsport use.

Real-world results

We run these units on our own builds and customer cars. Feedback is consistent: more bite off the line, cleaner launches, improved stability through long sweepers and far better traction out of tight bends. If you track your BMW or enjoy fast-road driving, this is the differential upgrade that unlocks trusted, repeatable performance.

Fitment

Designed for the following BMW M applications:

• F87 M2 including M2 Competition
• F80 M3
• F82 and F83 M4
• F10 M5
• F13 and F16 M6

Note: For vehicles equipped with the 210 electronic differential, a re-map is required.

Perfect for

• Track days and club motorsport
• Fast-road and spirited driving
• Standing-start events and high-grip launches
• Tuned cars seeking dependable traction with factory electronics

Keywords customers use when shopping for this upgrade

BMW limited slip differential upgrade, helical diff, torque biasing diff, LSD for F87 F80 F82 F83 F10 F13 F16, M car differential, e-diff replacement, BMW traction upgrade, drift friendly diff, track day diff, performance differential for BMW M2 M3 M4 M5 M6, ATB differential, BMW diff upgrade UK.

Fitting service

Professional installation available at MJ Modifications in Warwickshire. For a fitting quote or scheduling, email info@mjmodifications.co.uk.

Upgrade your BMW’s driveline with a Wavetrac and enjoy confident, consistent grip every time you drive.