exhaust for 2003 dodge cummins
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Agreed. I have the Expandit brand turbo back 5" system on my truck. 4" would have been fine. I used the semi-style exhaust band/clamps so that when I want more noise all I have to do is pop the muffler out and stick the straight pipe in. Takes 10 minutes to swap over. Finished my system off with a nice stainless 6" turn down. Keeps the heat off the bumper and whatever I'm towing.