What would sound louder no muffler and just a straight pipe or dual flowmaster exhaust on 2003 dodge ram 1500?
A 2003 Dodge Ram 1500 with no muffler and just a straight pipe will be significantly louder than the same truck with dual Flowmaster exhaust. Flowmasters, even in a dual setup, are designed to muffle and moderate the sound. A straight pipe offers no sound dampening whatsoever.