O.S. PowerBoost Muffler Pipe 91HZ Series T-REX

.91 size Powerboost Pipe from O.S. Engines.


FEATURES: Fits O.S. Speed 91HZ-R 3D and 91HZ series engines
          Developed exclusively for 3D flights with 90 size helicopters
          Delivers excellent high performance in the RPM range used in
            performing manuevers
          Aluminum construction with polished natural finish


INCLUDES: .91 size Powerboost Pipe
          Metal Engine to Pipe Gasket
          Pressure Type
          Silicone Exhaust Deflector
          Two 4x45mm Socket Head Cap Screws
          Two Nuts
          Two Washers
          4x5mm Screw
          Zip Tie


REQUIRES: Fastening to engine


SPECS:    Length: 12.3" (313mm) including exhaust outlet
          Exhaust Outlet Diameter: 0.39" (10mm)
          Distance Between Mounting Holes: 1.7" (43mm)
          Diameter: 1.96" (50mm) at thickest point