From personal experience. I find that Flowmaster Deltas have a high pitch, hollow, "tinny" sound. They also have a ton of in cab resonance. I had a Delta flow on a 02 Ram, I couldn't stand the resonance, so I switched to a long tube glass pack. After I got tired of the noise, I went back to a normal muffler.
I worked at a service shop years ago. I can't tell you how many Flowmasters we cut off, but it was a bunch. We installed Dynonax turbo mufflers in their place, everybody seemed happy with it.
Last edited by Whitedog; 01/03/2021 5:17 PM.
