• Apply to 50 size helicopters, according to the strength character of 50 engine to design, features 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.
• Suitable for 50H, 55H engine.
• Size: 41.2 x 270 x 70.5mm
• Weight: 147g
• Muffler Spacer x1
• Muffler x1
• Pressure nipple x1
• Pressure nipple Spacer x1
• Tube stopper x1 (13x16x18.5mm)
• Exhaust guide x1 (16.5×79.75mm)
• Spacer x2
• Collar screw x2(M3x35mm)
• Spring Washer x2