Sorry if there is a similar post to this but, I am thinking of modifying my brand new 2010 audi s4 (my first car), and i am thinking of replacing the ECU, intake, and exhaust. I was just wondering how this will effect my warranty and if my local audi dealer will still service my car. I will appreciate any insights you can give me.

 

Most dealerships are not mod friendly. Touch the ECU and kiss warranty bye-bye. You MIGHT get away with a cat-back exhaust but other than that, stock = warranty, mods = more $ and fun.