NARAKU Racing intake manifold for GY6 and all GY6-based models, as well as Honda Monkey and Monkey replica engines. The intake manifold has a passage of approx. 28mm. Suitable for 28-32mm CVK and PWK carburettors. Connection size on rubber flange of the carb is about 35-37mm. Unlike the original part, which is very rough inside, this Naraku version has been machined out and is smooth. This aids the gas flow and can release more power. A larger intake is the basic requirement for use of a larger carburettor.