Anyone running the Mufflex J-Pipe DODJP?

[JSG71]

If you would like to accomplish the same thing as the j pipe. Search the internet for "branch resonator". I have a 6.4 2500 and went with a large flowmaster and deleted the resonator. Sounds great but droned at 1600-1900 rpm. Did some research and just did a branch resonator after the muffler that totally killed the drone. Muffler shop charged me $60.


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[JLEONARD]

That's because you have a 22 inch muffler

Ya, I had a 22" Magnaflow too because people on this forum said it doesnt drone. Well I took it off because it drones like the rest of them in that special RPM range.