90 High Performance 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

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)

ATTENZIONE PER QUESTO PRODOTTO I TEMPI DI SPEDIZIONE POTREBBERO ESSERE DA 5/10 GIORNI