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ULTRA21XS
03-09-2007, 08:55 AM
I have a Ultra 21XS with the 350MAG with the bravo 1 in it....It has a 21 3 blade and tops out at about 62-65mpg....I was told to replace it with the revolution 4 21p....Anyone else have the same motor set-up....What do you have on your boat......And has anyone put exhaust on this motor and if so what did you gain by doing it......:)