Hatori SB-16 Special Muffler. This muffler is a 90 size only muffler. It is longer than the SB-14 and SB-15 but it has the same diamteter which means it can use the same type of aftermarket clamps used on the SB-14 and SB-15. This muffler also has the new style dual baffles.

Thunder Tiger's deluxe muffler will add more torque to your .30 size engine and give you the ultimate smooth running performance for years to come. Also perfect for the Raptor V2.

This pipe is tuned specifically for the YS .91 SR Long stroke moto and yields amazing power from your YS 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. The YS .91SR and this Hatori pipe is a well proven powerhouse for you .90 size heli! It comes with everything you need to bolt up.

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.

This is a tuned pipe specifically for the new O.S. .91 F3C competition motor which is the motor packaged with the Trex 700N with the Align label. This pipe is tuned to deliver maximum power and is designed with the Align Trex 700 Nitro in mind.