I got the $250 EBR ecm on mine 09' XB12Ss with a drummer. Had a terrible time with major decel pop and running hot before the ecm - After I installed it, all the decel pop is gone!. Every once in awhile I might here a small pop, but that's it. Happy with my purchase. I looked at doing a direct link on a dyno at the dealer, but it was crazy expensive. I don't have the time to fiddle with re-calibrating maps and what not. Just want to ride - that's why I got the plug n play.