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Power Pulleys

Turner's power pulleys reduce the rotational speed and mass of accessory pulleys to increase power and response. The lightweight aluminum design looks great under the hood and won't rust like steel pulleys.
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Vargas Turbo Technologies - Corporate Logo
T#:558795
Part#: VTT-CRANKHUB-1
In Stock
$ 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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Active Autowerke Power Pulley Kit - E9x M3
For vehicles with production date 2007-5/2008
Active Autowerke - Corporate Logo
T#:397285
Part#: 13-001
Ships in 4 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
Free Shipping
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
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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VAC Motorsports - Corporate Logo
T#:928436
Part#: VAC-UPPS-M62-99
Ships in 9 Business Days
$ 329.99 USD
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$ 329.99 USD
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VAC Underdrive Power Pulley Sets for the M60 release 8.5 horsepower @ 5800 RPM and 8 lb/ft of torque @ 4500 RPM (measured @ the wheels.) Always made using only virgin billet 6061 T6 aluminum, an anodized finish, and the tightest tolerances; VAC's pulleys are used on some of the fastest BMWs on the planet. A lightweight design optimizes performance and response while under-driving components just the right amount for proper function at all RPMs.
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VAC Motorsports - Corporate Logo
T#:598754
Part#: VAC-UPPS-S14-3-G
Ships on Sep 1, 2026
$ 334.99 USD
Free Shipping
$ 334.99 USD
Free Shipping
Made using only virgin billet aluminum, a hard anodized finish, and the tightest tolerances, VAC's pulley sets are used on some of the fastest S14s on the planet. This lightweight design optimizes performance and response while under-driving components just the right amount for proper function. Perfect for track cars, they can also be used on a street car without any problems. Features: Reduces pump cavitation at higher rpm's Saves weight when every bit counts Includes new, correct length, labeled Contitech belts for WP, ALT, P/S
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