i have a 2006 roadliner s. since i've had the bike, i've added the yamaha speedstar drags, the patrick racing intake kit and a power commander. i experienced quite a bit of popping during decel and shifting between gears. i was told i needed a cutom map. i got the map and it appeared to have helped the bike some, but it still pops between shifting gears, mostly between 2500 and 3000 rpm's. it appears to have cured some of the decel popping but not all. i spent quit a bit of money for the map work. i even took the bike back where i got the map work done. they tweaked around with it a little but it still came up with the same result. i wonder is this just the norm with this bike? if anyone has an answer i would love hear from you.