I think realistically the power difference betweeen a KKM, K&N and stock is at best 0.05 seconds down the quarter mile and I doubt it would even cause any more than 0.3mph increase in trap speed. I can understand that if a car is making Huge HP then it would matter but not for our cars.

I also feel that the stock ford filter is probably a bit better than some other brands so I'm going to stick with it.