Having researched and carefully selecting a product that made sense in cooling down the 103 Vtwin I purchased and installed the Reefer Cooler with outstanding results. On a recent 400 mile trip in VA summer weather the oil temp maintained an average 210 -220 degrees with my wife and I aboard. Within the last two weeks I was caught in a 3 mile backup on a humid, 95 degree day and while the temps rose to around 250+ with the fans humming the bike and I were well satisfied in the cooling process. The gents at the help desk are superb and show immediate concern and action with any questions asked. This is a must for ALL Big Twins!