Speedlab is an authorized installer of PES Tuning's Supercharger systems for the 4.2 V8 Audi's:

THE PES G4 - DESIGNED FOR THE MPI (MULTI PORT INJECTED)
AUDI/VW 4.2L 5V V8
2000>2006 A8 4.2
2000>2006 A6 4.2
2002>2003 S6 4.2
2004>2009 S4 4.2
2004 Allroad 4.2
2004>2006 Touareg
PES G4 MPI supercharger system for the VAG 4.2L 5V engine group . At the heart of the system is the PES cast aluminum intake manifold and an Eaton M90 supercharger. This roots-type positive displacement supercharger delivers instant, seamless boost throughout the RPM range. Eaton superchargers are used as OEM equipment on Mercedes Benz, Aston Martin, and Jaguar automobiles. The system is supplied complete with all parts necessary for installation.







The G4 comes in 3 configurations for MPI 4.2L cars...
STAGE 1
Our low boost (5psi) kit with a power increase of approx 20-25% over stock. The Stage 1 system offers a real power boost that you can truly feel. This entry level system is designed so that it may be upgraded easily to the intercooled version at any time. $6495
STAGE 1 PLUS
An intercooled version of the 5psi kit with an air - liquid intercooler system producing a power increase of approx 35% over stock. This configuration was tuned for vehicles with Tiptronic transmissions. It offers excellent power with no worries of transmission failures. Stage 1 PLUS is also a great alternative for those with 6speed cars that want to add significant power while keeping the boost pressure down to the modest 5psi level due to poor available fuel or extreme ambient temperatures. $8495 

Our 7psi kit is combined with our air - liquid intercooler system. This system is designed ONLY for Audi S4 6speed cars at this time. The system offers gains of approx 40-45% over stock. $8495