Wow, I never noticed. This is a factory upgrade. I work at a Chrysler Jeep and Dodge dealer so I went out and opened up a used 05 we have and found a flat incline that is carpeted. I then checked out one of the new 07's we have and found the dark gray plastic pedal in it's place. This is definately a factory piece. However I can't say I noticed much of a difference in foot angle or anything, this is why I probably didn't notice.