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More cooling, fluid capacity and longevity!

From our differential building and racing experience, a cool running diff is a crucial part of a vehicle that sees high performance use. This custom made differential cover is for all models of 135 and 335i with the larger diff casing. NOT FOR CONVERTIBLE MODELS.

BMW will tell you that in the stock configuration, gear oil is a "life-time" fill, sadly that nonsense helps them skirt costs and leave the same gear oil in your car forever. This frustration is compounded by the fact that the OE diff cover doesn't even have drain and fill plugs so the end user can do a swap themselves!

Under hard use, LSDs equipped diffs can run very hot, even the OS Giken diffs have been known to heat gear oil to extreme temps under track use. Our finned cover is stronger, and offers much better heat dissipation that these cars need when going to the track.

Now you can change fluid any time you like for longevity and protect your expensive aftermarket differential. A worthy upgrade for your E82, E87 E90, E92, E93 LSD setup.

Each VAC Finned Diff Cover Features:

-Increase oil capacity by a whopping 50%
-Increase cooling capacity via heat-dissipating fins
-Machined from a single billet of 6061-T6 aluminum-
-Drain and fill holes are machined for AN -8 o-ring plugs allowing for easy conversion to a diff oil-cooler setup
-Integral vent for street cars; pre-machined provision for external catch-can setup for racecars
-Pre-machined provision for differential oil temperature sensor
-OE Quality 10.9 grade flanged hex head hardware provided
-Improved Strength over Cast Cover
-no adverse effects on ride quality or noise
-Excellent ground clearance
-Made in the USA in house at VAC!

PLEASE NOTE: PRICE MAY VARY ACCORDING TO CURRENCY EXCHANGE RATE FLUCTUATIONS.

Estimated Volumetric Shipping Weight : 6.00 Kg