O.S.Engine Powerboost Pipe III 50/55HZ-H SPECS:Length: 11.1" (281mm)Diameter: 1.71" (43.6mm)Distance Between Muffler Mounting Hole Centers: 1.4" (37mm)Exhaust Outlet Diameter: 0.35" (9mm) REQUIRES:Silicone caulk to seal muffler to engine to prevent exhaust leak INCLUDES:Powerboost III Pipe with Metal GasketRubber Exhaust Tube, black in colorTwo M3x35mm...

Over the decades, RC Helicopters have seen massive changes with the advent of lithium polymer batteries and electronically stabilized rotor heads. We have watched the fall of nitro as well as the current resurgence of nitro. Our goal is to provide a quality product...

O.S. PowerBoost Pipe for 105HZ Engine

Introducing our versatile muffler designed to fit both YS and OS engines. After extensive testing by Kenny himself, we are proud to bring this product to the market. With adapters tailored for YS and OS engines, there is no need for switching, ensuring seamless...

Includes: - UAT 120CC x 1set

Absolute CNC Products "Power Pipe" - Vortex Edition High-Performance Nitro Helicopter Muffler System Designed by Greggor McGrath The "Power Pipe" from Absolute CNC Products is a high-performance nitro helicopter muffler system, designed by long-time RC helicopter veteran Greggor McGrath-a passionate innovator with over 20...

Include: Grommet pack of 4 Used for: Kenny Ko 91-105 Muffler    

Include: O-ring x 2pcs Used for: Kenny Ko 91-105 Muffler    

Includes: - UAT 180CC x 1set

Heavy duty Jet fuel fitting clunk with .125 (1/8) I.D. hole Measures 2.25" x .5" dia. Weighs 1.5 oz.

Includes: - UAT 280CC x 1set

 FITS ELAN V2, SPRINT V2 AND RANGER JETS!  This tank called the Elan+Smoke It is designed by Paul Jacques to fit into the BOOMERANG ELAN with no modifications. The tank carries a capacity of 125 oz. divided into 35 oz. of Smoke oil and...

This is the Boomerang Jets Turbinator II Fuel and Smoke Partition Tank carrying 75 oz fuel and 35 oz of smoke.  The total tank capacity is 110 ounces (3.2 L) . Tank measures 10" (254 mm) Long x 4.375" (111.12 mm) High x 4.5" (114 mm) Wide. This...

This is an updated version of the MS105-3D ZERO.α2 (Item number: MS-1203) with a new type of wide header.  Only for OS105HZ / HZ-R (Use for OS91HZ / HZ-R also Allowed) Corresponding to all GP700 Class Helicopters. Muffler developed for OS105HZ/ HZ-R. Features: it...

This is the MS60-3DZERO.SP2 Nitro Pipe Set. The MS-60 pipe features a 1-piece design and has been tuned exclusively for OS55, YS 56, & YS60 engines. This pipe has been specifically designed for all 3 engines power band in mind, and provide a great...

Heavy duty Jet fuel fitting clunk with .1875 (3/16) I.D. hole. Measures 2.25" x .5" dia. Weighs 1.5 oz.