While everyone loves to hate on the B6 S4, it was still the first Audi sedan to really compete with the other German cars in its segment both in luxury and performance. It may have an Achilles Heel in its timing chain guides, but it isn’t something that scares a true enthusiast with a determined attitude. If you have one of these amazing V8, Quattro, luxury sedans, you are sitting on a goldmine of potential, just make sure you take care of those weak points first. Everything you need to future-proof it and build it to your heart’s desire can be sourced right here at ECS Tuning.
