That's true will have to listen on pc with external speakers.
From some of the vid iv looked at the cobra resonated sounds pretty nice. Quite loud. It's only 5db of my Astra vxr with Remus exhaust and that was plenty loud enough. Such a hard decision though.
I'm thinking the k1 might not be a good idea as the rozzers will here me coming a mile away, lol! It it realy that hard to live with a k1?