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VAC - S50/ S52, M50 / M52 Underdrive Power Pulley Set

VAC-UPPS-E36-M50-B $299.95
$243.95
Engine Type: M50 M52 S50 us S52 us
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VAC - S50/ S52, M50 / M52 Underdrive Power Pulley Set View Enlarged Image
VAC - S50/ S52, M50 / M52 Underdrive Power Pulley Set Mini-Thumbnail VAC - S50/ S52, M50 / M52 Underdrive Power Pulley Set Mini-Thumbnail
Our Underdrive Power Pulley Sets release 10 horsepower @ 6900 RPM and 8 lb/ft of torque @ 5500 RPM (measured to the wheels!).

Always made using only virgin billet aluminum, a handsome anodized finish, and the tightest tolerances; our pulleys are used on some of the fastest BMWs on the planet.
Our very lightweight design optimizes performance and response while under-driving components just the right amount for proper function at all RPMs. Quality is always #1, and you can be sure these pulleys will fit right and last a lifetime, replacing BMWs crack prone plastic pulleys.

  • Great for street cars, durable enough for the fastest race cars and years of abuse
  • Saves weight and add HP when every bit counts
  • Includes new, correct length and labeled, Contitech OE belt for WP, ALT, P/S
  • OEM crank harmonic dampener is maintained for un-failing reliability in all conditions
  • Pulleys are quality made from 6061 T6 Billet Aluminum
  • Alternator pulley is sleeved with a black oxide coated alloy insert to prevent alternator slippage for high HP, high RPM use, a VAC exclusive design.

Please specify Bosch or Valeo Alternator. If unsure, you can check your alternator pulley against the picture seen to the right.

Like all our VAC billet components, these are made at VAC, in the USA with quality and care.
Click here to find out what makes our VAC machined products the best.


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