hello all. First time posting because I just purchased a boat this summer. Looking to winterize my Powerquest Raizor 22. It has a 454 mpi with a Bravo 1 outdrive. My local boat shop wants $350 to winterize the boat. Do I need to purchase the special flush muffs for the Bravo 1? Also they were talking about a powersteering cooler and a fuel cooler that is cooled by water also. Just want to do this right the first time and dont want to get ready next season and discover I had done this wrong! Any info would be great!!! Thanks Shane