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 shouldn't have all the fun: We are now
offering our awesome custom made differential cover for your 135
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
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:
Application and fitment notes:
Review on E92 335i
From Steven D of Philadelphia, Pennsylvania on 8/2/2012.
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