Been lookin for a while fore a clean sounding "true" dual exhaust setup. I currently have pacesetter shorties and a single 3" in/out Super 10 w/out a cat dumped out before the passenger tire. I was looking into either a nice set of glasspacks or Flowmaster Super 40's?
1997 F250 HD 351W

 

I have dual Dynomax super turbo mufflers on my 78 Bronco and love the way they sound. Flowmaster mufflers sound "okay" and if you like the way that sound that's good. Flowmasters are NOT a performance muffler however.