I installed the Arrow headers this winter.
At first I used the Akra end-can with this, but as this is pretty much like just having the headers regarding noise, I decided to get another end-can.
Due to the price I chose the Mivv Edge together with a cat insert.
This makes the sound OK, pretty much like stock (but with more character).
The only problem is that Mivv for some reason makes the pipe to fit the original huge exhaust snug on the outlet (from the "box").
This is not very smart. Akra is just as the stock with a diameter that fit the original (with the "thick" gasket) or Arrow (2 inch).
I had to buy a "pipe expander set" to make the Mivv pipe fit.
Very happy with the end result though.
I have flashed the ECU(WRT) and the throttle response is excellent (no surging), and the midrange is faaar better.
It lifts the front wheel with ease in 2nd just with throttle.