We offer the maverick dual 3/4 system here at HMF. There are two options for EFI controllers. The gen 3.5 is the optimizer we use on all of our systems and machines. We offer the Dobeck gen 4 closed loop tuner that will automatically adjust fuel/air ratio for you utilizing the bung that is in our head pipe. With this set up we were able to drop 38lbs off the stock system with an increase of 5 hp.