Wavetrac Limited Slip Differential (LSD) Install Kit for BMW F22 228i & F30 328i 3.91 Final Drive Includes ARP Ring Gear Bolts Part No. 30.309.185WK E93 318i Great value performance gain compared

Great value performance gain compared with repeatedly replacing OEM bushes

Predictable pedal feel and superior modulation for precise inputs

rose-jointed rear links

engineered to work with the standard calipers and hardware

Threaded spring platforms

Wavetrac Limited Slip Differential (LSD) Install Kit for BMW F22 228i & F30 328i 3.91 Final Drive Includes ARP Ring Gear Bolts Part No. 30.309.185WK E93 318i Great value performance gain comparedWavetrac Diff Install Package for BMW F22 228i and F30 328i 3. 91 Ratio Part No. 30. 309. 185WK Give your BMW sharper drive out of bends, stronger traction and more consistent acceleration with this Wavetrac helical torque biasing differential install package. Tailored for BMW 2 Series F22 228i and BMW 3 Series F30 328i models that use the 3. 91 final drive, it is the proven rear axle upgrade for fast road use, spirited street driving and track days