Re: Need exhaust help. Resonator?
Just a thought but was the muffler installed the proper direction? I have the same exhaust and nearly zero drone and there definitely isn't any with an elevated idle. I remember in the instructions that it said if he muffler was installed in a certain direction it would increase drone in the cab. If it is installed properly, I can't see how a resonator would hurt the performance.
2006 Ford F-250 Super Duty Lariat, Dark Stone/Medium Parchment, 6.0L, Torqshift, 3.73LS, TBC, Captain's Chairs, Heated Seats, Power Pedals, Tow Mirrors, Moonroof, Power Sliding Rear Window