Comes with the E3071 muffler for quiet efficiency.
40K carburetor has a diagonally placed needle valve so you don't need a remote needle valve.
Mounts directly into the bolt pattern for the 46AX.
Advanced Bimetallic Liner (ABL) uses two alloys to provide a durable layer between the brass liner and piston.
Recommended prop sizes: 12x7, 12x8, 13x6, 13x7.