The Gs450l 1981 (x) (e02 E15 E21 E22 E24 E25 E39) Muffler consists of twenty-one pieces with the Body,muffler being the most expensive. This Muffler diagram displays the required parts for the Gs450l 1981 (x) (e02 E15 E21 E22 E24 E25 E39) Muffler.