I installed this kit on a 1989 Bass Cat Sabre bass boat with a 1989 Mercury xr4 150. It was not a direct bolt application for me. I did some research and thought I was buying a direct bolt on kit. After I ordered it, I had some concerns of the application. The shipping was fast and once I had the opportunity to install it, there were several modifications I had to do to the engine components to get the cylinder mounted and to operate the cylinder lock to lock with no interference. Once mounted, this system works great and handles really well. Make sure you know for sure that you are ordering the exact kit for your application. Maybe they all require modifications. I was prepared to make the necessary modifications for my application to make it work. Overall, very pleased with the performance so far
Pat 
