Bike came from the dealer with stock pipe, 40/120 jet set up...I later put TOR's and K&N filer and rejetted to 40/135...since that time I have gone to pods with B&C shakers and jetted at 40/145...I added a 3mm washer to the needle when I put them back in...seems like it took out a flat spot I had between 1/8-1/4 throttle and 4,000-5,000 rpm