BMW Underdrive Power Pulleys

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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Vargas "Spline Lock" Crank Hub Solution - Includes Crank Bolt Capture...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:558795

Part#: VTT-CRANKHUB-1

Ships in 5 Business 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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AFE Power Pulley - E60 M5

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:382305

Part#: 79-10003

Ships in 2 Business Days

20% off MSRP $ 621.99

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

$ 497.00 USD

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20% off MSRP

$ 621.99

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

$ 497.00 USD

Add to Wish List

aFe Power's new power pulley brings performance engineering to your BMW M5. This power pulley is a complete bolt-on kit, including the pulley, bolts, and belts. aFe’s power pulleys are CNC machined out of billet aluminum and black anodized for that aggressive look under the M5’s hood. This power pulley does not modify factory harmonics or dampening. In recent Dyno testing this power pulley produced 5 HP and 6lbs. x ft. torque. When it comes to engineering for power, performance, protection and value, aFe Power is the only choice.

This part fits the following BMWs:
2006 - 2010 E60 M5

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BMW Underdrive Power Pulleys

Vargas "Spline Lock" Crank Hub Solution - Includes Crank Bolt Capture...

AFE Power Pulley - E60 M5

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