Boyesen complete membrane RAD-40B

Boyesen engineers have applied a series of technical innovations to their intake system range to ensure optimum power, torque and smoothness: Aerodynamic Surface Optimization (optimization of internal surfaces), Model-Specific Reed Petal Tensioning (specific valve for each model), Material Fuel Resistance (materials resistant to hydrocarbons) and Multi-Stage Reed Timing (valves that open in phases).
The BOYESEN valve diaphragms are specially developed for each engine model

• 100% aluminum housing, optimized inner surface condition
• 4-way diffuser to optimize flows and prevent discharge
• Intake manifold and mounting clamps included, direct fit without modification
• Variable flexibility valves, specific to each model (made of aerospace-grade carbon)
• Rubber-coated valves resistant to hydrocarbons ensure longer gasket life

The RC2 valve diaphragms, developed for competition use, optimize intake air flows