2-1/4" mufflers are welded to 1-3/4" head pipes; all are covered by one-piece, large 2-1/2" full-coverage, full-length chrome header/muffler heat shields that are virtually blue-proof Feature the traditional Vance & Hines hot-rod sound Removable baffles and mounting hardware included Made in the U.S.A.. EXHAUST ST-SHTS 04-13 XL