BMW Underdrive Power Pulleys for BMW 3 Series E93 (2007-2013)

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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.
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Turner Motorsport Power Pulley Kit - E90/E92/E93 M3
Turner Motorsport Power Pulley Kit - E90/E92/E93 M3
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:338810
Part#: TMS1805
Ships in 1 Business Day
Sale - Save 27% $ 546.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 401.99 USD
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Sale - Save 27%
$ 546.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 401.99 USD
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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.
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Turner Motorsport Power Pulley Kit - E9X M3 S65
Turner Motorsport Power Pulley Kit - E9X M3 S65
For vehicles with production date up to 05/2008 & a closckwise rotating Power Steering ...
10X Entries Into Our F80 M3 Sweepstakes
Adds up to 10-14hp and 7-9ft/lbs torque on a stock M3 | For vehicles with production date up to 04/200
Turner Motorsport - Corporate Logo
T#:395356
Part#: PPK-S65-EKT
Ships in 1 Business Day
Sale - Save 25% $ 535.99

This product was last offered at the strikethrough price on
06-14-2026

$ 401.99 USD
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Sale - Save 25%
$ 535.99

This product was last offered at the strikethrough price on
06-14-2026

$ 401.99 USD
Free Shipping
Add to Wish List
The idea of power pulleys is simple. The less effort the engine puts into running accessories such as the water pump, power steering, pump alternator etc., the more of that power can be used elsewhere - your wheels! The way this is done by reducing the rotation of the pulleys by as much as 10-20%! The end result is more horsepower at your disposal. Turner has done extensive testing (on and off the track), to ensure that the accessory systems still function as intended and without failure. These pulleys offer an excellent compromise of power gains, reliability, and performance.
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Vargas "Spline Lock" Crank Hub Solution - Includes Crank Bolt Capture - N55, S55
Vargas "Spline Lock" Crank Hub Solution - Includes Crank Bolt Capture...
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:558795
Part#: VTT-CRANKHUB-1
Ships in 1-3 days
$ 889.99 USD
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$ 889.99 USD
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Under certain conditions, the N55 crank hub likes to spin, without warning and even when the engine is in perfect health. The engineers at Vargas saw and dealt with this problem time and again, and they saw fit to do something about it. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines which press into the crank, and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and ECS are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution.
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Rogue Engineering Power Pulley Set - E9X M3 (05/2008+)
Rogue Engineering Power Pulley Set - E9X M3 (05/2008+)
Rogue Engineering - Corporate Logo
T#:553839
Part#: PP.S65.V8.B
Ships in 6 Business Days
$ 295.00 USD
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$ 295.00 USD
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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.
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Rogue Engineering Power Pulley Set - E9X M3 (up to 05/2008)
Rogue Engineering Power Pulley Set - E9X M3 (up to 05/2008)
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 in 8 Business Days
$ 295.00 USD
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$ 295.00 USD
Free Shipping
Add to Wish List
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.
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