Turn your Audi B8 S4 or S5 into an all-out street monster with IE's complete Dual Pulley kit! Includes ECU software plus "Dual Pulley" setup
Fits vehicles with manual transmissions only
Includes software, supercharger drive pulley, and installation kit for a smooth power transition
Call In Or Chat For Best Price! This software upgrade must be performed at ECS Tuning's facility in Ohio. The other components of this up Gains from 108hp/80lb-ft on 93 octane or 117hp/86lb-ft on 100 octane (from OE) - For customers without existing APR Stage 1 upgrade *Vehicle must be brought to ECS Tuning for programming*
Includes a new alternator, power steering and crank pulley that allows you to use a stock belt.
10X Entries Into Our F80 M3 Sweepstakes Vehicles with clutched alternator pulley require hardware kit - ES271279 for installation
Brand:
ES#:
420
Mfg#:
MK44CPK
In Stock
ON SALE!
SAVE 20%
$304.99
This product was last offered at the strikethrough price on 06-13-2026
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
Includes a new alternator, power steering and crank pulley that allows you to use a stock belt.
10X Entries Into Our F80 M3 Sweepstakes Vehicles with clutched alternator pulley require hardware kit - ES271279 for installation
Brand:
ES#:
3985
Mfg#:
MK44CPK-RED
In Stock
ON SALE!
$312.99
This product was last offered at the strikethrough price on 06-13-2026
Bolt On Late 3.0T Supercharger Pulley Upgrade!
10X Entries Into Our F80 M3 Sweepstakes Late 3.0T Bolt On Pulley - Please Confirm Fitment Before Ordering - Appropriate stage 2 software is requi
Decreases the diameter of the factory pulley from ~63.25mm to ~57.75mm, which in turn spins the supercharger ~9.5% faster.
Call In Or Chat For Best Price! - APR Stage II software is required to run any upgraded Pulley configuration and is sold separately - Ple
Brand:
ES#:
3219163
Mfg#:
MS100135
Ships in 5 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.
$250.99
This product was last offered at the strikethrough price on 09-09-2026
Lifetime Replacement
