That's interesting - I don't think I've seen a Streetfighter 848 before. Saw a standard one on Saturday, looked quite nice and it had the Termignoni exhausts but it really wasn't anywhere near as loud as I expected it to be :\
Edit: Ok, I'm going insane and apparently I'm getting confused between the 848 and 899
Edit: Ok, I'm going insane and apparently I'm getting confused between the 848 and 899