You'll see the advantage of using one, first its not going to make you a great deal of extra horsepower, it might increase your rear wheel power 3-5 hp, in most applications, or a bit more if used with a crank scraper in combination, but what it will more than likely do if its correctly installed with a matching baffled high capacity oil pan which along with a crank scraper, is become part of a total system to greatly increase oil flow control and maintain much more consistent oil flow and consistent pressure to the bearings ,but generally you'll see more consistent oil pressure with one installed, even well below that rpm level. Having a windage tray or screen will help maintain a higher volume of oil covering the oil pump pick-up, and prevent oil from being whipped into a froth containing air which will reduce bearing cooling and hydraulic surface support on the moving parts. its properly installed use , it tends to speed the flow of returning oil to the sump, and reduce the oil in the crank case dragged around the lower engine with the spinning crank assembly, and reduce the air or foam in the oil pan sump.