After reading these few FTE threads I called and ordered one from Walter at Fast Track Enterprises, I wished I would have done it years ago. It's on my 04.5 dodge, been running a straight piped factory 4" system since new, I bought one of the 30" units and basicly put it in place of the gutted convertor up front; thier is Zero of that annoying cummins dron in the cab now but still seems to have a nice deep grawl going down the road. This truck is only 500 rwhp but a great daily driver and tows great with the 6 spd, being able to hear the radio and hear on the phone now are way over due; seems to be a great product IMO, just wished I would have known about it sooner..........
Ryan Tucker