QMB139 50cc, 4-stroke Performance Exhaust Oval, Part #190-47

Stainless Steel Oval After-Market Performance Exhaust for QMB139 50cc 4-stroke engines. Oval Muffler. Head Pipe Bolt Hole Spacing: 50mm. Head Pipe Inner Diameter: 20mm. Muffler Overall Length: 15 inches. Includes Removable Silencer. Includes Mounting Kit.