Fisher

Power wise slip-ons with a stock headpipe is the best for overall output.Some full systems will produce more peak power but are a PITA to tune i.e.,Thunderheader,Rinehart true duals.I prefer Pythons these days.They have the best chrome and a decent but not too loud sound.V&H has been slipping in quality lately.We've sent back many sets because of bad chrome.In my opinion find a tuner that will allow the retention of the O2 sensors.The bikes just run better that way.