It might be just a different feel than you're used to. I replaced my rotors and pads with KVR rotors and Bendix pads. They felt very spongy until the pads were completely seated properly which took about 400 miles. They feel great now though. My wife has a Ford Escape and it to me has very responsive and firm feeling brakes. Stainless lines could be a big help as Andy mentioned, and maybe try some better, non-OEM pads.
