Helicopter Mufflers

This is a high quality tuned muffler for most .91-105 glow helicopter engines. This muffler fits OS, YS, TT engines, and other 91-105 engins which have same exhaust port dimensions.

Muffler comes with 2 adaptors to fit different engine exhaust ports, and it comes with vibration absorbers( Hatori Type mounting).It features a beautifully finished surface polished to a mirror finish and includes all necessary hardware. This is a great bolt-on performance upgrade for your heli and at a fraction of the cost of the big name brands!

Specs: Muffler length: 313mm Muffler diameter: 45mm Manifold standoff height: 27mm Manifold bolt spacing: 32mm & 42mm (both size adapter mount plates included)

*Note: Fits OS/TT/YS .91-105 glow helicopter engines (may fit others with 32mm or 42mm manifold bolt spacing).

RJX 37- 55 Muffler new version for 0S 37-55 and YS 50/55engine with silicon pipe