some of that info is true..but some of that info contradicts everything ive been told. Aftermarket exhaust WILL NOT work with these trucks as they sit. it will cause the canister that cleans the exahust to plug......but im sure the aftermarket will figure that out. Lifts can not void the powertrain warranty without proving that they caused a failure....no matter what ford says the moss magnuson act states clearly that disclaimers do not limit liability. i wont go into too much detail, but working in the field and being trained on this motor...you were fed a bunch of bull. There is quite a bit of that which was scare tactic....