Thanks for sharing. I was considering the same resonators for my AA system. It has the same low end rasp from a start... mostly if you lug it (mine is a 6MT). I wasn't sure if they would fit... need to check my layout to see if there is room at the same location as yours.
I have drone too. Bugs the $hit out of me. I think I know what the issue is though. (I know the resonators won't help drone.)
The exhaust is contacting the cross plate right behind where your resonators are mounted. I am going to see if I can move the exhaust up... if not, I will space the plate down as needed.
Thanks again for the pics. Any chance of posting a sound clip?
2014 JGC Summit 5.7
2009 M3 Vert (Fun in the sun)
2005 M3 Vert (Sold)
Too many more to list....