deff awsome info! but as you stated it depends on the service department and how far there willing to work with you. I can say for a fact i own a 03 sonata thats got a lil mods done (cai,exhuast, simple mods), my warrenty was denied for a power steering line, how the two co-inside no idea to me, and my boy who drives an 05 evo went to replace his wing becasue the clear coat wore off, they denied his warrenty also beacuse his car was modded so, long island dealers are rough lol