1035032 / 1035032 - Application Notes STILLEN now gives you a third side rocker option for the style of your 350Z. These innovative Series 3 side rockers offer a unique air slot that adds style and increased air flow to the rear brakes. This latest design gives you an aggressive look to complement your 350Z. Made of urethane these side rocker replace the factory rockers, they are not attached on top of the factory piece. This urethane rocker comes with a limited lifetime warranty against cracking or breaking during normal use. THIS PART # IS ONLY FOR THE DRIVER SIDE ROCKER FOR THE COMPLETE SET PLEASE ALSO ORDER (PART # 1035033). THIS ROCKER IS A REPLACEMENT FOR THE ORIGINAL SIDE SKIRT.