I dont have my bike yet, but I cant stop looking for exhausts, its like a disease. People say Gravesm others say Arata, then someone else wants Akro, then Micron........... What the hell? My head is spinning. My situation is this, the R1 has plenty of power as far as I am concerned, and I am not that concerned if one pipe makes 6 extra HP and another makes 8. I really want looks and sound. Many of you have said that the Arata sounds best, but on the video clip of the Graves dyno run, it sounded wayyyyyy too quiet. I had a MIG highmount on my 2002 R6 and I loved the sound, throaty, pretty loud, but not as annoying as a D&D. Now what kind of exhaust do I put on my 2004 R1 if I want sound and looks? Does anyone have any sound bytes of 04 exhausts? Thanks Guys!!!