Got the Raceland/Green fitted on my VTS two weeks ago, bargain price from Kam Racing. Yes its a little tricky to fit, but I let the lads down my local Hi-Q garage sort that out...
Have to say, it sounds amazing. No other mods done (...yet) and it sounds just brilliant. Once you get it into 3500rpm upwards it's a brutal growl. Not too noisy, but aggressive enough to turn heads all down the street. Going to make sure when I get my 'zorst done, it isn't too loud, because the Raceland kit sounds lovely and I'd cry if it got drowned out lol.