Supercharger System - 2004-2006 BMW Z4 (2.5L) Audi S4 B6 4.2L quattro A new belt is required

A new belt is required

This combination was selected to space your wheels out even with the muscular Atlas body lines

APR's calibration engineering experts dedicated months to fine-tuning the Stage 3 Pmax engine and transmission software to provide an exceptional driving experience without imposing undue risk on your engine's lifespan

direct-fit device

Supercharger System - 2004-2006 BMW Z4 (2.5L) Audi S4 B6 4.2L quattro A new belt is requiredExperience a remarkable boost in throttle response and mid to top end power with the VF Engineering Supercharger System for the BMW Z4. By utilizing the centrifugal Vortech supercharger, this system significantly enhances performance while preserving the original BMW quality, smoothness, and reliability. All kits are calibrated at 6 psi, delivering power on par with, if not exceeding, that of similar products operating at higher boost levels. With