The stock creates moreair pressure in the intake tube than those things do it just another rip off. Turbos shove air into the intake. So these guys thought hmmmm if we just shove air in there with an electric fan that would be easier than turbo. A real real strong electric fan might be able to do it. But those little bilge pumps cant. Im not sure a strong electric fan would work either. Because as the turbins turn form the exhaust the also create a little bit of vacum. Heloing get exhaust out faster. An electric fan cant do that.
