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90 High Performance Muffler HE90H15
Product Information
Instructions: ●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. Specification: ●Size:Φ49.1 x 318 x 81.75mm ●Weight:260g Accessories: ●Pressure nipple x1 ●Exhaust guide x1(Φ13.5xΦ18.5x79.75mm) ●Spacer x2 ●Collar screw x2(M4x40mm) ●Spring Washer x2 ●Strap x 1(100mm)
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