Finally got my exhaust finished up over the long weekend. Its all ready for the 15th. Got my resonator removed and straight piped

. Sounds great and really lets the Dynomax ST's growl. I don't know about all this talk regarding the exhaust droning at highway speeds. I can't tell any difference in the cab at ANY speed unless I have the windows down. FYI: I paid $31.50 at my local muffler shop and I got a 1 year warranty included on the work. It took about 15 minutes once it got on the rack and that included mandrel bending the pipe.