NO
Slip | Positive Traction |
Guaranteed |
Performance
Unfortunate History for BMW’s
Open Differential
Ever since the year of 1995, a Limited Slip
Differential (LSD) was an UNAVAILABLE
feature from BMW. The only vehicles that came with LSD as a standard were the
BMW M-Series vehicles, such as the M3, M5 and M6. What does this mean to you?
Well, if you’re a proud owner of the Ultimate Driving Machine that’s
NOT a M-Series,
all the power going to both wheels are
NOT
being delivered properly and equally to the
asphalt. As a result, your performance and/or traction are
challenged.
Before you go off to your dealer
to ask about your 335i and its LSD, let us tell you…your dealer does
NOT have any LSDs
available for your BMW 335i, nor does your vehicle come equipped with one.
Rebuildable Differentials
As if what BMW did since 1995 wasn’t complicating, any
BMW 335i with a build date AFTER
March 2007, now have the Differential Crown/Ring gear
MATED/WELDED to the
differential as an integral part of the differential assembly. This is a
HUGE issue
because that means they CANNOT
be bolted off and separated from the stock
differential assembly, making the factory core
COMPLETELY
USELESS for any aftermarket
LSD applications.
Why Install a Limited Slip
Differential?
Well, let us answer this question with another
question: What’s the point of having all that horsepower and torque if you’re
going to lose most of it anyway?
BMW’s 335i is equipped with what
is called an OPEN
DIFFERENTIAL. In BMW’s Open Differential, power will
be delivered to both the rear wheels simultaneously, but one rear wheel won’t
transfer all the power to the asphalt—this results in
LOSS of traction
and performance.
What makes up Active
Autowerke’s Limited Slip Differential?
Through immense cooperation and effort, Active
Autowerke and KMS designed a solution for the BMW 335i to provide positive
traction! Your factory 335i differential housing with the current differential
ratios are mated to a 4 clutch disk LSD unit, providing a 30/90 ramping that is
hand-built and assembled by the BMW Master Tech and differential guru, Brett
Anderson of KMS. All these components are guaranteed with a 3
YEAR WARRANTY
on differential parts and workmanship.
**Note: Special tools are
required for removing and installing a BMW 335i differential.
Available LSD Options
For BMW 335i vehicles with build dates
BEFORE March 2007, your differential crown and
internals can be used as a good and useable core. The core
deposit is only $650 and WILL
be refunded after inspection and verification.
For BMW 335i vehicles with build
dates AFTER
March 2007, your differential crown is mated permanently to the differential
assembly, meaning your core cannot be used. As a result, you will need
another differential and yours cannot be exchanged. The additional cost is
$1280. Please refer to “Rebuildable Differentials” as to what differentials are
rebuildable.
Component Features:
-HAND-BUILT by BMW Master Tech, Brett
Anderson
-Positive traction with 30/90 ramping
-Multiple clutch disc unit
-3 YEAR WARRANTY
-E92 335i STANDARD models ONLY with 3.08:1 ratio
*This image shows you the fused Crown gear mated to a 03/2007 BMW differential
assembly.
**This is a NON-rebuildable differential
