KASAMA header For Hatori with OS 91

This exhaust header is for use with Hatori muffler (938, 939) and OS91 in replacement of the standard Hatori header.

Its hole is a tight fit to the engine exhaust and its inner shape changes progressively to the tube shape of the Muffler. It results in a very efficient gas flow providing cooler runing, a quicker response and more power!

It is a must have for 3D pilots. You will fill the difference at the first flight!