Fitted my Ramair today and at first was a bit disconcerted by the "chirping" it seemed to make at tick over (hopefully that's not just mine) but when I had a quick blast up the road those thoughts just disappeared with that roar.
Throttle response is better and there is less popping on deceleration but I've not yet loaded the tune Blackthou has provided me.
I was thinking that with the induction kit it would make the TORS louder (not really sure why) but it's hard to tell over the 'sucking'!