Yeah fuel.... If you're picking up speed it's increasing efficiency so your consumption at the same cruising speed decreases (or am I missing what you meant)? Increased efficiency will become more important as gas goes back to the $5 mark around here, or even more in Turkey and Europe! I would assume this guy saw that as another gain from the drive, with gas at $10 a gallon or whatever on the water there.

Absolutely, as the speed increases the fuel mieage increases accordingly. If one goes 10 more miles in one hour at the same rpm, then it also increases the fuel mileage.

It was just with this boat the engines were changed at the same time (added a Whipple) so there is no accurately way to determine this.

Can these replace any bravo. would they work on a mystique.

Rik, What props is he running?

Yes, the kits work on any I/O or new construction. One does not need a Bravo to install the #7M Kit.

The drives will work on a 35' or 36' Cigarette also.

Kevin, I supplied him with a set if 17.25X 30" Herings for this boat.

Any updates on this setup?

Nice find and pretty informative. Don't know how I missed this thread four years ago.

The boat was imported to the US last year? It sold to a guy in California I heard.