well I've been wanting some pi cams, ssoo I've been lookin for some good units. went to the pull a part today, and got somw with warranty for 30bux!! they looked good so ithrew them in. she fired right up. a lot smoother is al I can say of now. the throttle response is a lot better. pulls noticeably better as well. so im happy with them. I think ill be able to tell more of a difference in the morning as im very tired lol.