Twin Power 73-81 Big Twin and XL Black Handlebar Bar Switches With WiresThis Part Fits:YearMakeModelSubmodel1980-1981Harley-DavidsonFLHS Electra Glide SportBase1980-1981<
Twin Power 07-10 Big Twin and XL Black Handlebar Switch Kit Does Not Include Audio or CruiseThis Part Fits:YearMakeModelSubmodel2007-2010Harley-DavidsonFLHR Road KingBase
Our recalibration kit cures throttle flat spots, backfiring and poor throttle response common to the CV carbs. It increases power midrange and top end while maintaining satisfactory fuel economy.