K & N = 25 Rwhp?

[Mystic Cobra]

I just read the April issue of Mustang Enthusiast. In this issue they dyno'd a stock 03 Cobra (359 rwhp, 376 rwtq) and then bolted on a K&N Filter Charger Kit. With no other mods the new numbers were 389 rwhp and 384 rwtq. The boost went from a max of 8.9 stock to 9.8.

All I can say is WOW.:D