Active Autowerke Pulley Kit
This performance product is designed to increase horsepower while retaining all the inherent qualities of your BMW without sacrificing reliability.
Features and Benefits Of This Product
Another key element in the development of the Signature Pulley Kit was to retain the "Factory Crank hex Drive Adapter", this was important to keep this factory feature for its inherent purpose. Coupled with a much ** beefier ** sidewall design, this reinforces the engine harmonics to be ultra smooth.
Another key element in the launching of this underdrive pulley system was the task of manufacturing a DPK, a double side belt for the air conditioner. Whenever you alter the crankshaft main pulley size, it will also influence the size of the A/C belt. As of late production 2007, BMW changed over the belt configuration to a double sided groove belt on the E9X M3. Active Auotwerke philosophy is always to try and maintain components like in a BMW fashion, as if BMW would have done. This would be a first in the BMW performance industry to have an aftermarket DPK belt produced.
To further enhance the system, Active Autowerke will provide an extra spare DPK belt with the kit. This would be for emergency circumstances if the need ever arises.
Tested and ran on the in-house Mustang dyno here at Active Autowerke quantifies a true measurable 12 + horsepower gain on a completely stock BMW.
A must for the true BMW M enthusiast.
HP gains: 10 RWHP 12+ HP
Complete Bolt on System and is easily reversible
Designed for use on DCT and Manual models
Reduces Rotational Mass
Does not cause overheating found in smaller pulley designs
Pair with AA Software for Additional Gains
Available for all production dates ( Single sided & DPK belts )
For E90 / E92 M3: Please verify your E9x M3 on the A/C belt if single sided or double sided (DPK) when ordering.
How to tell if you have a DPK 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.
Take a look at the A/C belt, if the belt looks, feels similar to that of the SINGLE sided belt that drives the water pump. We designate this as a 2007 ONLY model or models produced up 05/2008 which carries a single sided PK belt.
Take a look at the A/C belt, if the belt has multiple grooves on either side, then you have a DPK belt. Which is a belt with double PK grooves on both sides. Production model should fall from 6/2008 and up.
What Its Made From
This is a complete bolt on kit engineered using Aircraft Grade Billet 6061 Hard Coat Anodized Aluminum.
What's Inside The Box
Includes Replacement DRIVE and A/C Belts
EXTRA spare DPK belt provided where applicable
This performance upgrade is easy to install and can be fully reversible if the need arises. It is packaged to be simple and compact with the features to be installed easily within a short time frame.
Installation Difficulty: PROFESSIONAL (Professional Installation Recommended)
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Warranty + Satisfaction Guarantee
Order with confidence! If you are not completely satisfied with your purchase, you may return it for exchange or refund. This product carries a 1 year manufacturers warranty. See our terms of sale for full details.
Notes / Warnings
Please check your local laws for ensure legality when using this product on public roads and highways. In areas where this product is not legal for road use it is sold strictly for off-road, track or show use only.
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Induces more power, better sound, better fuel economy, whats not to love about these aFe cold air intake systems.
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- PDF Install Guide for Active Autowerke Pulley Kit for BMW 3 Series 2006-2012 E90 Sedan, E91 Touring, E92 Coupe and E93 Cabrio
|For E60 M5|
|E60 M5 Signature Underdrive Pulley Kit incl Belts||
|For E63 M6|
|E63 M6 Signature Underdrive Pulley Kit incl Belts||
|For E90 E92 E93 M3|
|E9X Signature Pullley Kit incl Belts (Production date after Jun 2008)||
|E9X Signature Pullley Kit incl Belts (Production date before Jun 2008)||