Patriot Exhaust H8409 1-3/4" Full Length Exhaust Header for Ford Mustang 351C 67-70 Full length headers are typically used for higher RPM horsepower, but can also increase the mid range torque in applications were there is room to fit a long tube design Durable 18-gauge tubing Comes complete with gaskets, header bolts and collector reducers Available in three finishes; uncoated for individual customizing, chrome finish for that show quality shine or with Patriot's very popular metallic ceramic coating Limited one year warranty