So it is safe to say that:
1) Akra is the "least" loudest of the bunch (in a good way!! at least to me), but still gives the car a nice deep tone?
2) Remus sport vs Remus race is a pretty good difference in terms of decibels and tone signature?
3) Eissenman sounds really good, but felt like it would have some droning inside the cabin?
I'm personally looking for a solution that:
a) is not very loud, but still gives a nice deep tone to the car (like the Akra I had for my old e90 M3... the akra i heard on the F80 M3 was much different)
b) has 90mm tips minimum, but preferably 98-102mm or larger
i can't make my decision and I've been reading, researching, and listening to youtube clips ad nauseam