HINSON Black C5 Corvette 1 7/8" Long Tube Headers Stainless Headers Ceramic Coated with X-pipe (Catted System) HINSON C5 Corvette 1 7/8" Long Tube Headers Stainless Headers Ceramic Coated with X-pipe (Catted System) C5 header systems are proudly built in the USA from stainless steel and then ceramic coated for lower under hood temperatures. These headers slide in to place without the need to loosen the engine mounts or the front crossmember. Installation time is short and can be done easily from below the car. Our ceramic coated stainless steel headers use mandrel bent 1 7/8" tubing and 3/8" flanges for a precision fit and finish. These ceramic coated stainless steel headers will deliver gains of over 25rwhp with tuning. We ceramic coat the X-pipe at no additional charge.