VAC Performance Rear Differentials are built to last with the
highest quality components, procedures, and technical
Before we were building BMW's, we were building differentials...
for 50+ years!
Your E46 M3 can benefit greatly in performance from our upgraded
high performance differentials.
For the street, our two most popular upgraded
ratios are 3.91 and 4.10.
For the track our diffs are unreal! Offering
the longest time before rebuilds avalible due to our attention to
deatail and excelent machine work we offer in house. Various LSD
and ATB options are available, and we can make a diff to fit any
The OEM LSD can be retained but for high performance use, we
highly recomend the Quaife or OS Giken differentials as they offer
excellent life, smooth response, and excellent durability even
under the most demanding use.
Quaife diffs use helical gears to bias torque between each wheel.
There are no clutch plates to wear out and operation is exceedingly
smooth with no noise making them perfect for a race car or street
car. OS Giken is very popular with the enthusiasts and racers that
see a lot of track time.
We know of course your going to have questions about a product
like this: Feel free to call or email us so we can get you a quote
on the spot and the diff that best suits your needs.
Our Performance differentials feature:
Take advantage of our our expertise with BMWs. Many of our
winning VAC Engine customers also run our VAC performance
Note: A core diff housing is required for this service, if no
core is available, we keep E46 M3 cores in stock.
Go with an aftermarket diff
From Anonymous of Catheral City, California on 2/12/2010.
is currently empty