2016 Ram 2500 Larame limited (has every option for the year) factory rear air ride Minimal modifications have been done, and all have been done for reliability. -Banks air cold air intake-Banks ram air intake horn (with billet intake manifold plate)-Arp Head studs -Egr and dpf have been relocated to a faraway land. (4 in straight with a muffler )-replaced factory 32 gal fuel tank with S&B 52 gallon tank. I might be missing something.If you have any questions, let me know. 701-509-3379The truck has no issues.