PITTS MUFFLER 91FX BIS04091

This is a Bisson Pitts Style Muffler for the O.S. Max .91FX Two-Stroke Engine.

FEATURES:

Large volume oval main chamber for improved engine "breathing".

Directs exhaust gases out bottom of cowl at slight back-facing angle for clean routing.

Welded aluminun construction.

Pitts-Style (engines mounted on their side)

INCLUDES:

One Muffler

One Pre-Installed Large Pressure Fitting

REQUIRES:

No Mounting Bolts are included, use OSMG6925.

Muffler Gasket, use PEFR1405.

SPECS:

Overall Length (exhaust flange to end of exhaust tubes): 100mm (4")

Tube Length: 63mm (2-1/2")

Exhaust Tubes: 7.5mm inside diameter, and are 30mm (1-3/16") apart

Main Muffler Chamber- Length: 95mm (3-3/4") Height: 25mm (1")

Width: 55mm (2-3/16")

Mounting holes from center to center: 42mm