Does anyone run the blue run dry impellers? Are they any better than the stock Mercruiser ones?

no they are not. waste of money

I second that. My experience seemed like they did not Flow as much water. Maybe too slippery ? Went back with the Mercruiser impeller (not the sierra).

Why use a run dry impeller? Are you running your motor out of the water? Just acouple questions.

I have installed some of the blue impellers in the past. In my opinion it doesnt buy you anything "extra".. FWIW, I run the Merc ones in my boats.. Jamie / Lakeside