If you're constantly asked what kind of diffuser you have on your car, you might benefit from putting a "Difflow" vinyl on your car, or on your diffuser itself! Our diffusers are now all shipped with 2 "Difflow" stickers, 1 on either side of the diffuser, but if you want to update an older diffuser, this is how! This order comes with 2 stickers and shipped for no additional charge!