you'll find alot of times that the dealer really determines warranty work. sometimes you'll get a dealer that doesn't have a problem with mods and will still do warranty work(as long as the mods didn't cause the problem, then they won't fix it). or you might run into the dealer that won't fix an alternator problem because you voided the warranty by putting a 2'' BB on. WTF?! so i'd check with your local dealer first and get what they say in writing so you have it later. be nice, courteous, and respectful and you'll get alot further with them in the long run.