Possibly the best horsepower-per-dollar available anywhere. No downsides, no compromises!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! Adds up to 10-14hp and 7-9ft/lbs torque on a stock M3
Brand:
ES#:
3251754
Mfg#:
PPK-S65-LKT
Ships on Nov 4, 2026
ON SALE!
SAVE 30%
$535.99
This product was last offered at the strikethrough price on 05-02-2026
Our Kevlar accessory Belts are a performance alternative to a traditional belt. Replaces BMW # 11287841529
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Eliminate power-sucking, parasitic drag with no downside - +11HP/+7TQ
Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes! For vehicles with a production date from 06/2008
Brand:
ES#:
3149101
Mfg#:
D560-0004
Ships in 6 Business Days
11% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$483.99
This product was last offered at the strikethrough price on 06-03-2026
Reduce rotating mass and lower weight to free-up hidden horsepower.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with a production date up to 05/2008 with single drive belt.
Reduce rotating mass and lower weight to free-up hidden horsepower.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with a production date of 05/2008 and newer with double belts.
Reduce rotating mass and lower weight to free-up hidden horsepower.
ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with a production date up to 05/2008 with single drive belt.
Brand:
ES#:
5444721
Mfg#:
PP.S65.V8.A
In Stock
Limited Qty Sale
$295.00
This product was last offered at the strikethrough price on 05-02-2026
Bolt-on performance in minutes!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
2532823
Mfg#:
79-10001
Ships in 3 Business Days
20% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$585.00
This product was last offered at the strikethrough price on 12-09-2025
$468.00 USD
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More About Performance Pulleys
Underdrive pulleys help reduce the amount of power your engine has to devote to accessories like your alternator or a/c compressor. Unlock extra power with performance underdrive pulleys and lightweight pulley options to reduce rotating mass.