Sadly, no I did not. I would imagine it would sound more like my F150. I have a Magnaflow cat back on it with no resonator behind the muffler, and it is louder at all points: idle, cruising, and wot. My wife drives the commander some and she is not interested in the sound, so the compromise sound I have on the xk is just perfect. Not too loud, but under wot it does sound nice!
1989 Jeep YJ - some stock stuff left.
2002 F150 SuperCrew- Tow Vehicle
2006 Commander - Hemi Limited w/QD II, Off-road Group II, NAV, DVD, Magnaflow muffler.