Holy crap. This is why women shouldn't work on cars! Lol just kiddin. Now come on, u can NEVER hurt your engine with a cai kit. I mean hell its just an upgraded version of what u already have. Most people report better fuel mileage. I will say that if u wanna see decent seat of the pants difference u might look into some other mods to "complimant" the cai like a dp or headers.