Boost Control Solenoid Kit. Includes: Boost Control Solenoid, 2 X 1/8" NPT to 3/16" Barb Adapter & MufflerAEM's Boost Control Solenoid is specifically manufactured for automotive applications. It is designed to resist corrosion and sticking from exposure to rich fuel mixtures. AEM's Boost Control Solenoid is pressure tested to 100 PSI and includes 1/8" NPT to 3/8" barb fittings to reduce any chance of leaks.Instructions