APEXi - ECV Exhaust Control Valve, Flange-Type, 61mm (155-A022) EXHAUST the N1 Evolution uses the

the N1 Evolution uses the minimum amount of pipe bends to allow for greater exhaust flow

- Air filter with minimal air-flow restriction

Front: 7 inch/8K

Required for use on All (D-Jetro) Power FC models

The N1 Evolution was created for those who are looking for something one step further than the classic N1 design

APEXi - ECV Exhaust Control Valve, Flange-Type, 61mm (155-A022) EXHAUST the N1 Evolution uses theThe ECV was created as an alternative to the standard silencer typically fitted in the tip of performance exhaust systems to lower the sound decibel output. The ECV (Exhaust Control Valve) is a spring loaded butterfly valve that can be installed to the main piping of an existing exhaust system. The angle of the valve can be modified on the fly from within the cockpit to provide complete control over exhaust decibel output. Features: Can minimize