About K&n Filters

I just put a k&nFilter in my 1996 buick riv and I dont really feel a differnce in power......is something wrong? did it increse my Horsepower but I just dont know it?

There probably isnt anything wrong, when you add a k&n you normally only feel a small difference, when i added one on my riv i didnt feel a difference, but i noticed it was a little better on gas