2003-11 Crown Vic / Grand Marquis 4.6L 2V Headers featuring 1-5/8" primaries, 3" slip fit collectors and 2.5" diameter catted lead pipes. Stainless steel construction, TIG welded and made in the USA. Designed to fit the flanged factory connection point. Includes necessary O2 extensions and clamps.
All warranty questions, claims or otherwise should be directed toward the manufacturer, Dart.