Helicopter Mufflers

Align 90 High Performance Muffler

Muffler apply to 90 size helicopters, according to the strength character of 90 engine to design, features much increase the horsepower, fuel-saving, low noise, and the highest air exhaust volume on the market.
Great design and test to three spaces: expansion chamber, accelerated section, silencer chamber, high efficiency and the quick respond of medium speed and high speed, great for 3D flying.
Use for O.S 91SR/HZ & ALIGN 91H/HP engine.

Specifications:

• Size:49.1 x 318 x 81.75mm
• Weight:225g

Funtech 3D Muffler for YS60 sr SIDE exhaust engine

the performance of this muffler is 20% higher compared to other mufflers

MRCI High Performance Exhaust Systems for YS  120 R/C Helicopter engines are an elegantly blended combination of dyno tested tuned performance, and unique & beautiful Italian styling. Built on a hybrid 2 piece design, the MRCI mufflers will provide excellent vibration isolation thanks to this 2 piece mounting system. Designed for all 90+ sized engines, the Diamond Exhaust system will provide incredible power output for any engine.

Included header is compatible with YS applications and optionally an OS header can be purchased for the ability to be ran with an OS engine. The MRCI Mufflers are also compatible with Hatori 2 piece mounting headers, so you can simply unbolt a Hatori Pipe, and install the MRCI pipe in a matter of minutes!  

Note: This muffler must be used with a pumped engine: a vent nipple or threaded inlet is not present.

MRCI SILVER Carbon muffler for OS105 engine

Specifications:

• Muffler  MRCI for all Motor from 1.2 mm aluminum, with CNC connector compatible Hatori+ Power Booster , with 3 room  air and fiber silencer.
• Steel screws , O-Ring VAITON
• Siye : A: 270mm, B: 45 mm, C: 69mm ,D: 16mm,F:85.9mm, G:70mm, H:51mm,Y:10 mm

Aluminium Polished Muffler for 3MM 53TOC engine.

OS Max 105HZ-R with Powerboost Pipe Combo

With Demand Regulator System, Cylinder capacity: 17,17 cm³ Output Power: 3,8 HP @ 15000 RPM Ideal power drive for 700 size Helicopter O.S. ENGINE # OSMG1961 / OSMG2884

These are the engines that precision aerobatic and 3D heli pilots have been waiting for! In order for 90-sized machines to nail huge maneuvers and hardcore, smackdown-style 3D it's all about power, and both the 105HZ and 105HZ-R have it in abundance. Displacement has been increased by 15%, while a huge venturi rams air into the carburetor, producing massive power. Plus, they fit in a .90-sized mounting pattern.

Featuring the displacement of a 1.05 in the mounting space of a .90.
More displacement means more power, and these engines boost displacement by 15%!
A huge venturi boosts output even further.
The machined, blue anodized heatsink head is light in weight, and cools the engine efficiently.
An extra feature on the 105HZ-R is the DRS (Demand Regulator System), which ensures consistent fuel flow regardless of the heli's attitude.

Specifications:

• Displacement: 1.048 cu in (17.17 cc)
• Bore: 1.442 in (29 mm)
• Stroke: 1.024 in (26 mm)
• Practical rpm: 2,000-16,500
• Output: 3.8 hp @ 15,000 rpm
• Weight: 21.03 oz (596 g)

Yamada Power Pipe 96 for YS 96SRX/91SRX

Specifications:

• Length: 235mm
• Weight: 230g