I put this system on and 5 minutes after I started my bike, the header changed color. Goodbye polished shine, hello gold/brown tint. After I had this pipe awhile and raced the sticker burnt on. I think buy it used if you can. $700 ain’t cheap. Don't forget jetting & spending a day messing with the carb & putting it back together. It's not louder than stock. It's a low roar. Put this pipe on and you got a good low end.