OK, so where do you start, springs, chip, exhaust, brakes?? I just purchased the 2001 Silver S4 for $18,800 I have ust had an oportunity to take her up MT Palomar and she seemed like she wanted to overheat. I saw there was oil in the coolant expansion chamber and assumed the head gasket was blown. Does anyone know the costs associated with that? Also noticed a cracking in the suspension at the wheel, maybe a tie rod?? Does the S4 have a tie rod replacement issue, the car only has 50k on it?

 

Where do I start? Possible blown head gasket, suspension issues and your wondering about mods? 50K miles is awefully low for a head gasket. $18,800 sounds like you got a dog. I hope I'm wrong and you've misdiagnosed problems cause your gonna hate Audi at that rate.