The AWE Tuning 3.0T Performance Pulley, coupled with special G.I.A.C. Stage 2 Performance Software will take your 3.0T to the next level - a 488 HP level. 

The Performance Pulley Suite

The AWE Tuning Stage 2 Performance Pulley suite is as follow/s: 

• AWE Tuning Stage 2 Upgrade - Includes AWE Tuning 3.0T Performance Pulley (Pulley, Belt, Related Hardware, no tool) and G.I.A.C. Stage 2 Performance Software for those who already have G.I.A.C. 3.0T Stage 1 Performance Software. Does not include handheld switcher.

The Pulley

Through use of the smaller-than-stock AWE Tuning 3.0T Performance Pulley, the kit spins the 3.0Ts supercharger faster, creating more boost pressure while staying within the tested parameters of the unit. This increased boost pressure is used in conjunction with G.I.A.C. Stage 2 Performance Software to maximize the potential of the stock Eaton supercharger once coupled with the AWE Tuning 3.0T Performance Pulley.

The stock Audi ECU software directs a valve inside the supercharger to open, then waste (or "œbleed off")