O.S. Max E-4020 Silencer (91FX)

This is the Muffler for the OS MAX 91FX Engine.

FEATURES: Mufflers Have Aluminum Construction. Expansion-Type Design for Maximum Muffling.

INCLUDES: One Muffler Two 4 x 40 mm Muffler Mounting Screws

FEATURES: Muffler Comes Pre-Tapped.

REQUIRES: Exhaust Gasket OSMG6014

SPECS: Center to center of mounting holes: 43mm Rectangular exhaust port: 29.5 mm x 9.0mm

NOTE: Do not use on the 61SF and 61FX, this muffler will not provide enough back pressure for proper operation.

For muffler extensions use: OSMG2582 15mm OSMG2586 35mm OSMG2598 90°