BMW Underdrive Power Pulleys for BMW E92 (2007-2013) M3

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Reduce parasitic loss of power on your BMW's engine by safely under driving the belt driven auxiliary systems. Reducing this drag on your engine results in MORE HORSEPOWER AND TORQUE to the wheels of your BMW. Our BMW underdrive power pulley kits are specifically designed for each BMW application to make the best power while maintaining stock driveability and reliability, eliminating potential downsides. Others may advertise "their" pulleys boasting more power, but we concluded that for street and track driven BMWs, ours are the best size and design to ensure both your engine and it's belt-driven systems (alternator, water pump, power steering etc) are well within safe operation. We run these under drive pulleys on our own BMWs, so we would not want them any other way.

Turner Motorsport Power Pulley Kit - E90/E92/E93 M3
Turner Motorsport Power Pulley Kit - E90/E92/E93 M3
Get MORE HORSEPOWER and TORQUE on your 2008, 2009 and new...
Turner Motorsport - Corporate Logo
T#:338810
Part#: TMS1805
In Stock
Sale - Save 20% $359.95
Starting at $287.96
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Sale - Save 20% $359.95
Starting at $287.96
Free Shipping


Get MORE HORSEPOWER and TORQUE on your 2008, 2009 and newer M3 coupe, sedan or convertible by replacing the stock crank pulley with this specially designed performance version. The Power Pulley reduces rotational mass and safely under drives your belt driven auxiliaries for reduced parasitic power loss. The end result: More power to your M3's rear wheels! Designed to give the best performance benefit with no sacrifices or compromises to your BMW's reliability. These have been tested on hundreds of cars before public release and there are simply NO DOWNSIDES to this upgrade.

CNC machined using aircraft grade 6061 aluminum billet, and anodized with a stealthy black coating. Others may advertise "their" crank pulley boasting higher numbers (using a smaller pulley profile), but we have concluded that for street and track driven M3s, this is the best size and design to ensure proper engine temp and auxiliary functionality. As the S65 M3 V8 engine doesn't use a traditional harmonic balancer, all factory harmonics and dampening are fully and properly retained. We've found this pulley alone adds 10 to 14 HP and 7 to 9 Ft/lbs Torque on a stock M3 with no other mods(!!).

The E9x M3 Power Pulley Kit includes:
(1) Underdrive Crank Pulley
(1) Correctly Sized Drive Belt
(6) Allen Head Bolts
(1) Installation instructions

Fits the following BMWs:
2008+ E90/E92/E93 M3 6 Speed Manual Transmission
2008+ E90/E92/E93 M3 DCT Double Clutch Transmission

This kit uses readily-available, off-the-shelf belts - no difficult to find belts here! When you're ready for new belts, sets for 2008 manual transmission vehicles can be found here, and 2009+ manual transmission and all DCT vehicles can be found here.


Please select the year/transmission of your M3 (below) so that we may send you the proper parts for your application. There are specific kits for 2008 vs 2009+ model years, as well as manual transmission versus DCT sequential gearboxes. Choose below.

E9X M3 Dinan Underdrive Pulley Kit
E9X M3 Dinan Underdrive Pulley Kit
This underdrive crankshaft pulley frees up horsepower and...
Dinan - Corporate Logo
T#:389534
Part#: E9XM3-D560
Direct Ship
Starting at $369.77
Free Shipping
Starting at $369.77
Free Shipping

This underdrive crankshaft pulley frees up horsepower and torque by slowing down the engine-mounted accessories. Your stock pulley/belt setup is designed to work more than it needs. Accessories such as the water pump, power steering pump, and alternator are working more than they need to. By backing down the work they do you can restore that lost horsepower and still maintain safe operating levels of each. This underdrive pulley has been carefully engineered to make more horsepower and still leave you with a safe buffer. Dinan has performed extensive testing to ensure cooling and charging systems remain fully functional, even in extreme heat. The underdrive pulley on the S65 releases 11hp and 7ft-lbs of torque back into the engine. ¦
For over 35 years, Dinan has been America's premier tuning company, pioneering advancements in BMW modification using their aEURoetotal packageaEUR approach that focuses on balanced performance while preserving the original character and driving feel that a BMW offers. When you install a Dinan part on your car, know that it's not only carefully developed and tested, but that Dinan stands behind it with a four year, 50,000-mile warranty.

BMW changed the pulley and belt design midway through 2008. Select your appropriate production date from the options below.

This item fits the following BMWs:
2008-2013 E90 E92 E93 BMW M3 Sedan, Coupe, Convertible

Active Autowerke Power Pulley Kit - E9x M3
Active Autowerke Power Pulley Kit - E9x M3
Easy to install - reduces parasitic losses from belt driv...
Active Autowerke - Corporate Logo
T#:397285
Part#: 13-001
Direct Ship
$399.00
$399.00

Easy to install - reduces parasitic losses from belt driven auxiliary components. Engine crankshaft pulley remains the same, this modification simply unleashes untapped potential from your vehicle. Expect to see gains around 10 RWHP from your S65. All BMW power pulleys included, including alternator, water pump, and power steering pulleys.

Another key element in developing this under-drive pulley system was the task of manufacturing a DPK, a double side belt for the air conditioner. When you alter the crankshaft main pulley size, it also influences 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 Autowerke philosophy is always to try and maintain components consistent with BMW quality. This is the first aftermarket DPK produced - Active Autowerke will provide an extra spare DPK belt with the kit for emergency circumstances

  • Complete Bolt on System and is easily reversible
  • Aircraft Grade Billet 6061 Hard Coat Anodized Aluminum
  • Simple and easy to install
  • Includes Replacement DRIVE and A/C Belts
  • EXTRA spare DPK belt provided where applicable
  • 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 )

This product fits the following BMWs:
2009-2013 E9X M3


Rogue Engineering Power Pulley Set - E9X M3 (05/2008+)
Rogue Engineering Power Pulley Set - E9X M3 (05/2008+)
Rogue Engineering has developed a power pulley kit that r...
Rogue Engineering - Corporate Logo
T#:553839
Part#: PP.S65.V8.B
Ships on Feb 14, 2019
$295.00
Free Shipping on orders $99 and up

Rogue Engineering has developed a power pulley kit that reduces the drag on specific pulleys while allowing others to remain at their same efficiency. This allows for perfect operation in daily driven vehicles without a hiccup or stutter. However, when the demand for power is requested, the power pulley kit allows for the freed power to become apparent. The term "power" pulley is a bit of a misnomer. Underdrive pulleys actually free up power by reducing the drag caused by the accessories. These pulleys are based off a calculated percentage from factory dimensions, so that particular component speeds are safely reduced without affecting their true purpose.

Rogue Engineering Power Pullies are CNC machined from 6061-T6, heat treated aluminum and specially coated with a MIL-A-8625 Type III hard coat anodize finish. This kind of anodizing is not to be confused with a Type II cosmetic anodize finish (typical colors such as red, blue, silver, green, etc.). The hard coat anodize finish actually builds a small surface layer on top of the aluminum, preventing wear.

Fits the following BMWs:
05/2008-2013 E9X BMW M3 (with 2 drive belts)


Rogue Engineering Power Pulley Set - E9X M3 (up to 05/2008)
Rogue Engineering Power Pulley Set - E9X M3 (up to 05/2008) ...
Rogue Engineering has developed a power pulley kit that r... For vehicles with a production date up to 05/2008 with single drive belt.
Rogue Engineering - Corporate Logo
T#:553840
Part#: PP.S65.V8.A
Ships on Feb 14, 2019
$295.00
Free Shipping on orders $99 and up

Rogue Engineering has developed a power pulley kit that reduces the drag on specific pulleys while allowing others to remain at their same efficiency. This allows for perfect operation in daily driven vehicles without a hiccup or stutter. However, when the demand for power is requested, the power pulley kit allows for the freed power to become apparent. The term "power" pulley is a bit of a misnomer. Underdrive pulleys actually free up power by reducing the drag caused by the accessories. These pulleys are based off a calculated percentage from factory dimensions, so that particular component speeds are safely reduced without affecting their true purpose.

Rogue Engineering Power Pullies are CNC machined from 6061-T6, heat treated aluminum and specially coated with a MIL-A-8625 Type III hard coat anodize finish. This kind of anodizing is not to be confused with a Type II cosmetic anodize finish (typical colors such as red, blue, silver, green, etc.). The hard coat anodize finish actually builds a small surface layer on top of the aluminum, preventing wear.

This part fits the following BMWs:
2008-05/2008 E9X BMW M3 (with single drive belt)

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