As the title suggests, I recently changed out my stock muffler with a magnaflow 12288 - 18in:*3in, 2.5in x2 out; 5x8*oval, it sounded mean off the line, but the in cabin drone was unbearable. So I took it back to the shop and had them swap it out for 12588 - 22in : 3in, 2.5in x2 out; 5x11 oval. This muffler is much quiter, which I expected, but unfortunately it still has a bad drone at my cruising speed of 75 mph. I am not sure if it's magnaflows tone that is causing the resonance in the cabin or the added pipe that was added in before and links the stock dual pipes out the side? My real problem lies with years and years of driving a jeep topless with wind noise and loud stereo has led to my left ear ringing that picks up on that drone and actually makes the ringing so loud in my head it hurts with prolonged exposure. All whining aside I'm trying to see if I should switch muffler companies/types...remove my stock pipes and just have the muffler exhaust exit after with some short turn downs or replace the whole thing and go with a bolt on cat back set up? What are my best options? I want the loud grumble and distinct get on the gas roar without any drone. Is anyone running a dynomax VT? Any help from fellow 5.4s or others who have better options is appreciated. Many thanks.