Wavetrac ATB LSD - E30/E36: 325i M3

BMW E30 and E36 Limited Slip Differential Upgrade for 325i and M3

Transform your rear-drive BMW with the ultimate limited slip differential upgrade for E30 and E36 325i and M3 applications. This gear-driven unit keeps putting power down even when an inside wheel goes light over kerbs or on slick surfaces, delivering relentless traction, stronger corner exits and faster lap times. If you want dependable grip for fast road and track days, this is the diff you want.

Why this helical limited slip is different

• Delivers drive when one axle unloads thanks to a patented internal cam device that creates load and biases it to the tyre with grip.
• Consistent behaviour over time using patented carbon fibre bias plates for the pinions, maintaining performance from new mileage to high mileage.
• Patented wave profile prevents the near-zero load issues common to other gear-type units, improving stability and throttle modulation mid-corner.
• No clutch packs to wear, no chatter and no on-throttle push. Transparent in daily use and friendly with factory traction and stability systems.
• Built for strength with 9310 steel gears, billet or forged steel bodies and ARP fasteners throughout.
• Designed and manufactured in the USA for proven motorsport-grade quality.

Real performance you can feel

On circuit, when the inside rear skips across a kerb or the surface turns greasy, many gear-type diffs go open and the outside wheel stops receiving torque. This unit keeps driving the loaded wheel so you maintain momentum and confidence. The result is smoother power delivery, predictable balance at the limit and quicker exits. Smooth is fast.

Perfect for road and track

Ideally suited to high performance road cars that see regular track time. It is quiet, fuss-free and easy to live with on the street, yet gives serious traction when you push on. Our team and our customers run these on UK track days and the feedback is the same every time: stronger drive out of corners, more consistency and more confidence.

Fitment

BMW 3 Series E30 and E36 applications including 325i and M3. Ideal as a rear differential upgrade for enthusiasts seeking better acceleration off the line, improved corner exit grip and reliability for performance driving.

Installation and support

Professional fitting available at MJ Modifications, Warwickshire. Email info@mjmodifications.co.uk for a quote and booking. We can supply, install and advise on the best setup for fast road or track day use.

Why choose this upgrade

• Gear-driven limited slip differential that maintains drive when one wheel is unloaded.
• Heard of helical diffs going open under zero-load conditions? This one solves that problem.
• Stronger, smoother and more predictable than traditional clutch-pack differentials for everyday and performance use.

Keywords to help you find the right upgrade

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Order today for a proven traction upgrade that makes your E30 or E36 quicker, calmer and more consistent on every drive.