In January, I had a custom exhaust of my own design fabricated. It's the only picture in my gallery if you're interested

I've been pleased with the entire system; it was cost effective and produces a great tone.

The problem................at 2000-2500 RPMs, the drone rattles the glass and diminishes my already challenged hearing.

I've read a lot of threads about this problem, but there's no consensus as to which muffler will eliminate the drone and yet still produce a sound which is aggressive.

I'm interested in hearing from individuals who've had the problem and know the best possible way to addresss it.

Don

 

Add a resonator(s) inline to the muffler.

 

yep.........did that on my last car, haven't modded the exhaust on the XF yet...definitely resonator

 

i've heard of people just using dynomat or simular in the rear hatch area to clean alot of it up. also, isn't there a muffler that has 2 passages and one opens up under hard throttle like a straight pipe? something like that would keep you in check during crusing speeds.