BMW Underdrive Power Pulleys for BMW E92 M3 S65 4.0L

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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
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:338810
Part#: TMS1805
Ships on Nov 4, 2026
Sale - Save 30% $ 535.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 375.19 USD
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Sale - Save 30%
$ 535.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 375.19 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 Steer...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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 on Jun 30, 2026
Sale - Save 35% $ 524.99

This product was last offered at the strikethrough price on
05-03-2026

$ 341.24 USD
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Sale - Save 35%
$ 524.99

This product was last offered at the strikethrough price on
05-03-2026

$ 341.24 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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Active Autowerke Power Pulley Kit - E9x M3
Active Autowerke Power Pulley Kit - E9x M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date 2007-5/2008
Active Autowerke - Corporate Logo
T#:397285
Part#: 13-001
Ships in 3 Business Days
5% off MSRP $ 399.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 379.99 USD
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5% off MSRP
$ 399.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 379.99 USD
Free Shipping
Add to Wish List
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.
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Rogue Engineering Power Pulley Set - E9X M3 (05/2008+)
Rogue Engineering Power Pulley Set - E9X M3 (05/2008+)
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Rogue Engineering - Corporate Logo
T#:553839
Part#: PP.S65.V8.B
Ships in 5 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.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Rogue Engineering - Corporate Logo
T#:553840
Part#: PP.S65.V8.A
Ships in 8 Business Days
$ 295.00 USD
Free Shipping
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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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