This adapter allows easy installation of Blow-Off Valves, Fuel Pressure Regulators & Boost Gauges. Direct bolt-on design requires no drilling or modification of intake manifold. Includes one 1/8", 1/4" brass barbed fitting, 2 extra ports for various additional boost & vacuum accessories and block-off fittings for unused ports.

Applications: All Yamaha 1.8L SVHO & SHO models.