Spin the supercharger faster without affecting the accessory drive system
10X Entries Into Our F80 M3 Sweepstakes Appropriate stage 2 software is required for use For vehicles up through the 2019 model year only
Brand:
ES#:
4056962
Mfg#:
025510ECS01KT
Ships in 1 Business Day
$398.98
This product was last offered at the strikethrough price on 08-31-2026
Larger diameter pulley increases the speed at which the supercharger spins, increasing the boost pressure output
*NOTE: This kit must be used with appropriate "Stage 2" performance software.
Software & installation kit not included in this upgrade kit
*For models with bolt-on style supercharger pulleys - 3.0 TFSI Performance Software is sold separately an
Software & installation kit not included in this upgrade kit
*To be used with CTS 3.0T Crank Pulley Upgrade Kit - 3.0 TFSI Performance Software is sold separately and
Decreases the diameter of the factory pulley, increasing the boost pressure output - Software not included in this upgrade
*Fits very late model years equipped with 4-bolt style supercharger pulleys - 3.0 TFSI Stage 2 Software i
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.