Yesterday ,I got my trusted riding Buddie to do a fly by on my Rocket Touring with a Run in set of TORS and cat box eliminator K&N in OEM air box and remap by our Dyno Guy on a quiet stretch of the Old Pacific Hwy ,you never know what your bike sounds like until you stand by the road side and listen to it pass ,well he passed me at an indicated 170 KPH and it was listening to a Rolls Royce merlin in a Spitfire ,I have heard these planes at various air shows and the sound is simular, My buddie who owns a new Honda FB6 was amazed how much more power the Rocket has and the roll on from 100ks to 165 Ks amazed him even old mate on his Busa was impressed by the sound I am usually tail end Charlie on most of our rides so they never get to hear the Rocket, plenty of Rockets are much more modified than mine but mine suits my riding style an requirements