Well I just put a turbo back 4 inch Dynomax exhaust on my buddys 99 F350 SD 7.3 dually, and let me tell you it needed it a whole lot. I had never driven a PSD before today and I cant believe how much more power the current diesels have. The exhaust really brought it to life, and is one of the best sounding/looking exhaust I've seen.

I'm interested in the DynoMax. What I don't want is for the exhaust to be much louder than stock (though I know it must be somewhat louder) and I certainly don't what it to 'drone' at highway speeds.


Can you comment about the exhaust noise increase and if there is any 'drone'?

i have one and you can tell is is a bit louder than stock, relly can tell in the back passenger seat, but i truly love the sound, and in tunnels, it blows your mind