Any result's or comment's on the new flowmaster 50 serie's 2 in,2 out,muffler
or 2 in,1 out system for the 03 K2500HD?
My truck is to damn quiet.

 

The exhaust on the 2500HD is quite unique two cats two 3" pipes into 1 muffler not many companys make a 2-1 muffler. I had a Flowmaster 70 series muffler installed, they make a muffler exactly for the 2500HD. You can get the muffler with a tailpipe but I perfer the sleeper look, the 70 series isn't too loud. If I could do it over again I would go the dynatech or TOG headers and magnaflow exhaust. I think now I could run low 15s once I put in efans and underdrive pulleys.