Must-Have VAG-COM Mods for B6 and B7 Audis – Nick's Car Blog

Louder V8! Jackal air intake for B6/B7 Audi S4 installed and reviewed

quattroworld.com Forums: Detailed Power Output Stage (POS) info including using the spare channel

Norby931: 2004 Audi S4 V1.01 - Vehicle Mods

Upgrading firmware and maps on VW RNS 510 SatNav

How to Fix Dipped Headlight Error on an Audi – Nick's Car Blog

My B7 Audi RS4 – Nick's Car Blog

5 Best Mods for B7 Audi A4 2.0 TFSI – ModBargains.com's Blog

Audi S4 B6 2004 [ Add-On, Tuning, LODs, Template

VF Engineering Audi R8 V8 ECU and TCU Tuning Software