Cool off your expensive LSD!

From our differential building and racing experience, a cool running diff is a crucial part of a vehicle that sees high performance use. M3s and 1Ms shouln't have all the fun: We are now offering our awesome custom made differential cover for your 135 and 335!
BMW will tell you that the 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 themselfs!

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 (We have yet to hit the race-length cover on our lowered city daily-driven 135i!)
• Available in street length and race length
• As always, Made in the USA in house at VAC
   

Application and fitment notes:

Images: