These are really nice radiators. Bolt right up. A word of caution though. The large oem Yamaha bushings that go through the rubber inserts come very close to the cores of these, I ground the bushings flat on the side that is close to radiators so in case of a fall they wouldn't cut into the core.These radiators are much stronger and a little larger that stock I assume thats why I needed more clearance.So far very impressed.