Hi, Has anyone here installed a magnaflow cat back exhaust on the 2001 1500 with the off road package? I have a flowmaster cat back dual exit that is rusted out (crap flowmaster) and want to go magnaflow but it says it doesnt fit the off road model. Supposedly the factory exhaust is different as well. I spoke with one member here who said it does have some fitment issues but can work. Has anyone else tried it? Thanks Dennis