2018 mercury 6.2 Upgrades?

[Roosky01]

I have a Merc 6.2 300hp that's coming out of warranty in a few weeks. I sure would like to bump it up to 350hp and I believe the only difference between 300 and 350 is the tune?

Anyways, I would like to bump up the hp in the most economical manner and would greatly appreciate all the input on how to get this accomplished....

 

[02HoWaRd26]

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May not be exact one but they’re only a phone call away.

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