Increase supercharger rotational speed to provide more boost to your engine
*To be used with Stage 2 software - Stage 2+ software necessary if used in conjunction with a supercharger pulley upgrade*
Brand:
ES#:
4005444
Mfg#:
034-145-Z045
In Stock
ON SALE!
SAVE 10%
$500.00
This product was last offered at the strikethrough price on 08-17-2026
Flows 20% better than stock, sounds better, looks better, and perfectly complements your APR open intake system!
Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes! Used in conjunction with ES3579697.
Brand:
ES#:
4714509
Mfg#:
CI100037-A
EO#:
D-782-8
Back Ordered
11% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$418.99
This product was last offered at the strikethrough price on 08-18-2026
Turn your Audi B8 S4 or S5 into an all-out street monster with IE's complete Dual Pulley kit! Includes ECU & TCU software plus Dual Pulley setup
5X Entries For Our 25th Anniversary Sweepstakes!
Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.
Lifetime Replacement
