The Weapon R coolant overflow tank replaces your bland factory overflow tank and gives a show quality performance look to your engine bay. Built from 6061 billet aluminum, the Weapon R coolant overflow tank is TIG welded with CNC machined fittings and polished to a mirror shine. Each coolant overflow tank kit comes complete with aluminum brackets and stainless steel mounting clamps as well as three feet of high silicon fiber reinforced tubing. A great modification for those looking to add some zest to any street or show 350Z or G35 coupe.