Its hard to explain drone but it is when you here the exhaust continuously inside the cabin and its like a humming sound going in and out. I didnt care about drone but if you have a family, reconsider it.
The reso is the can shaped muffler right at the end of the exhaust at the tip.
The BWoody is great...it is def louder than the airaid. butt-dyno is a go as well...seems to have a little more pep/pulls harder through 3K-5500 rpm's...and at WOT it is a lot louder under the hood. The filter does drop down quite a bit, so if you will be off-roading the AIRAID is a much better choice. Since I had both, let me know if you have any questions...I will have videos soon of both to post for comparison
2014 WK2 SRT aka "Jack" Work in progress...
2008 WK 5.7 aka "Jill" (Sold)