These brake lines kits are made in the USA to meet strict D.O.T. certifications. The steel braided lines are a smoke color with the AP logo printed on it. The CNC machined fittings are in classic Agency Power Gold to separate you from the competition. All kits are assembled for a quick and easy install. Include fittings, hoses, and necessary hardware.Steel Braided lines improve component performance over the stock rubber hose. With rubber hose, the fluid under pressure flexes the hose, cause loss in firmness and reaction. With the steel braided lines, the response is firmer giving you more control.Brake lines are sold as pairs, front or rear. These fit the Mazda RX8 2003 and on. Designed to work with the OEM brake system.