Just traded in 2018 my 2001 2500 v10 for my current 2500. I'm looking for a exhaust upgrade recommendation. I put in a k an n cold air intake and want to match up a good exhaust mod. Without breaking the bank. I pull a 30' toyhaulerat about 8700 lbs. Also not familiar with resonators and what they do, so don't want to screw up any warranty also. Thanks for any help