IE 57.5mm Press-Fit Supercharger Pulley Upgrade Audi S4, S5 B8, SQ5 8R, A6 C7
 
The IE supercharger pulley for 3.0T V6 Audi engines is a great mod to extract more power form your supercharger. Capable of up to 492HP on it's own with a IE stage 2 single pulley tune, or combine with IE 188mm crank pulley (IEBAVJ7) (Stage 2 dual pulley) for up to a massive 548HP! These power gains are achieved by spinning the supercharger unit significantly faster than stock for higher boost levels with pulleys and proper ECU tuning.   
 
LEADING FEATURES
Increases supercharger RPM by 10% for single pulley
Combine with IE 188mm crank pulley for 26% SC RPM increase
Increases supercharger boost levels for single & dual pulley tunes
CNC machined from billet steel
Inside bore precision honed at IE  
Zinc plated to ensure no rust
Replaces stock pulley on Eaton TVS 1320 Superchargers
Engineered in-house using CAD modeling and FEA analysis
 
SUPERCHARGER PULLEY
IE's Supercharger Pulley Upgrade for Audi 3.0T TFSI Engines found in B8/B8.5 S4, S5, Q5, SQ5 and C7 A6, A7 models increasing the supercharger RPM throughout the full powerband. At redline supercharger speed is increased by 1800 RPM. The IE pulley is reduces the size to 57.5mm in diameter, making it one of most aggressive and powerful on the market.  
 
PULLEY SPECIFICATIONS
PULLEY TYPE
SUPERCHARGER PULLEY DIAMETER    
CRANK PULLEY DIAMETER    
SUPERCHARGER RATIO    
Stock Pulley
63.20
162.25
2.5672
Single pulley (SC pulley only)
57.5
162.25
2.8217
Dual Pulley (SC + 188mm crank pulley)    
57.5
188
3.2695
Dual Pulley (207mm crank pulley)
63.20
207
3.2753

If you want to jump straight to Stage 2 dual pulley power, IE 207mm crank pulley IEBAVJ6 can be used instead without the need to purchase this smaller press-on SC pulley.
 
WHAT'S INCLUDED & WHAT'S SOLD SEPARATELY
 
The following items are included:
1X) IE 57.5mm overdrive supercharger pulley
 
The following items are not included but required:
IE stage 2 single or dual pulley ECU tune
IE 3.0T supercharger pulley puller tool (IEBAVJ4)
Audi S4 B8 3.0 TFSI
Audi S5 B8 3.0 TFSI
Audi Q5 8R 3.0 TFSI
Audi SQ5 8R 3.0 TFSI
Audi A6 C7 3.0 TFSI
Audi A7 C7 3.0 TFSI