Tuners mostly make "MOVES" on the motors power bands IF that motor is turning 9000 + rpms. Most of the larger V-6 mercury tuners are very comparable and won't show you a ton of difference...
Jay
Jay
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I have a question on a tuner for a 260 2.5 will a 225 promax tuner be the same? Will it for rpm s?
Thanks jay
dave -
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