[ £62.38 ]
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●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.
●Size:Φ49.1 x 318 x 81.75mm
●Weight:260g
●Pressure nipple x1
●Exhaust guide x1(Φ13.5xΦ18.5x79.75mm)
●Spacer x2
●Collar screw x2(M4x45mm)
●Spring Washer x2
●Strap x 1(100mm)
[ £62.38 ]
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