I had the Akra M-Performance on my car when I bought it, but the sound was just too quiet/stock like, so I sold that and couldn't justify spending $4k+ on RPI/Meisterschaft/etc. Ended up finding a killer deal on a brand new Borla S-Type Catback.
Attached vid is of the Borla exhaust on my car. Not even broken in yet, has maybe 75-100 miles on it. Overall, I'd say sound wise the Akra was maybe a 3/10, and this is about a 5/10 (loudness scale, 10 being straightpipes, 1 being 1 being OEM exhaust). I think paired with the catless downpipes, this Borla will make for an extroardinary smooth yet aggressive sound. It sounds very exotic like throughout the RPM ranges, and absolutely ZERO drone at all times.
This is with stock downpipes, I will be installing catless downpipes this weekend and will take another video.
Enjoy!