went to install the new Donaldson muffler i picked up and found the rest of the exhaust isn't really worth saving. this is NOT a race truck it's used to tow the race car trailer so i want the darn thing quiet without any drone. it's stock but i "may" either slide the stock plate or install a #12. i was installing a pacbrake and wanted to install the muffler but don't think it's worth the hassle. the exhaust system i'm leaning towards is the turbo back 4" stainless magnaflow city advertises. i'd just as soon stay with the stock diameter but they're not to be found in a complete system... either way the cats going under the bench. all input appreciated i'd like to get something ordered tomorrow, wanna get this thing off the lift.