O.S muffler body AND header for the FS-52S is constructed of aluminum. Threaded intake. Installed pressure nipple. This product includes one main muffler body. One pressure tap (installed). One exhaust header.
An OS FS-52S engine.
Diameter of Main Body: 9/16" (21mm) Diameter of Output: 5/16" (7.5mm) Outer Diameter of Intake: 9/16" (14mm) Inner Diameter of Intake: 3/8" (9.5mm) Overall Length: 3" (76mm) Weight: 1.1 oz (31g)