I'm in the same boat. I have til 70K on my bumper to bumper. I know I'll hit 70 pretty quick with the way I drive so I don't think that much will break before then unless it's something odd.

I'm changing out my HE and pump so I doubt they'll know it's upgraded unless they take off the bumper and even still I don't think it's a warranty voider. Also, I'm pretty sure Chrysler is a little different than the other auto companys on the warranty. I think whatever you decide to change or modify, if it breaks, they won't replace. So if you do something to your engine, in essence, your engine is voided but not something in the suspension or in the interior.

Ford will take it all away if they see anything AM but from what I read in my Service Contract, it's specific parts not everything for Chrysler warranties