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As Phil mentioned, I recommend Mercury manufactured props because with 47 years of outboard boating experience, I believe they are the best performing designs you can buy, applicable to any brand which gives excellent resale value, and the leader in propeller design technology.

For the ultimate performance on your 115 HP powered Dauntless, this is what I would buy - the newly designed Spitfire X7. Be sure to view the three videos on the page, and if you buy one, be sure to use the Flo Torq III hub kit to eliminate clutch rattle common with SS props on 4-stroke engines..

https://www.mercurymarine.com/en/us/p...itfire-x7/

But like any top quality product, they carry a decent price. In this case, you can get one shipped to your door for $399. The aluminum Spitfire, recommended earlier, would be a less expensive alternative (maybe $140) if price is a concern.