one instance on here a dealer tried telling a member his "custom exhaust" was messing something up and he had warranty issues. I'm pretty sure he fought with them.
that was a rare case. unless they can prove the "modification" ACTUALLY caused the issue, whatever it may be, then they cannot void your warranty.
everyone and their mother adds exhaust/CAIs to these trucks. 1 in a million have problems
JVC Arsenal KD, Bilstein 5100 adjustables [maxed], aFe Stage 2 Air Intake, Superchips 3865, Husky Floor Mats, Saddleman Camo Seat Covers, Flowmaster 40 Series Muffler SI/DO, 20 % Tint. 35x12.5x17 Federal Couragia M/T, 17x8.5 VTEC Warlord wheels, -12mm offest.