Align 91H and Align 91HP engines OS .91 SZ, OS .91HZ F3C Quality and superb power
Specifically designed for the OS .91 SZ and also works well with OS .91HZ F3C as well as the Align 91H and Align 91HP motor. This Hatori pipe yields amazing power from your OS motor. This is the pipe of choice for a lot of top 3D pilots as well as those seeking to get the most out of their motor. This is the pipe of choice for a lot of top 3D pilots as well as those seeking to get the most out of their motor. It comes with everything you need to bolt up.