What I've noticed even more than usual exhaust stuff from doing my own equal length setup is that you can't listen to video on a crap phone speaker and think you have an idea of the sound.
Mine has so much more low frequency loveliness than you can hear on any device. You can 'feel' it, it sounds great - with the valves shut. Smooth and sound builds as the revs rise.
But the 4-5k rasp comes in badly with the valves open on mine, like a resonance in the system. So I just mapped it with BM3 to leave the flaps shut in efficient and sport. To me it's perfect and doesn't seem to affect performance at all, just keeps the rasp away.
I know some people couldn't live with that, but until I get time to fit more mufflers somewhere I'm very happy. £275 very well spent
