This complete bolt-on Active
Autowerke Signature Pulley Kit for the E90, E92, or E93 M3 produces dyno proven
gains of 10 wheel horsepower. For a high quality product it is constructed from
billet 6061 anodized aluminum. This pulley is not only designed to produce
power, but also retain the inherent qualities of your vehicle without
This performance upgrade is easy
to install and is fully reversible. Please verify if your E9X M3's air
conditioning belt is single or double sided before ordering.
How to tell if you have a double or single sided belt:
Take a look at the water pump
belt, you will see that the belt is smooth on one side and has multiple
grooves on the flip side. This is referred to as a SINGLE side belt.
The air conditioning belt, if
it looks and feels similar to the belt that drives the water pump then it is
If the air conditioning belt
has multiple groves on both sides then you have a dual sided belt.
Production models should be from 6/2008 up.
E9X M3 Pulley
Horsepower gains of 10 wheel horsepower
- Complete system and
- Billet 6061 anodized
- Easy to install
- Includes replacement
drive and air conditioning belts
- Fits both manual and
Will not cause overheating found in competitor pulleys
- Great for pairing
with AA software