Accurate boost control is accomplished by high performance solenoid valve. Easier control with large switches. Manual boost control is also available. Boost is adjustable even when driving. Boost control has 4 channels. Loaded with functions: digital boost meter, peak hold, scramble, warning, limiter, gain adjustment. Highly visible green LCD (turns red under warning). Heat resistant silicone hoses are used with Ø6-3 way pipe and Ø4-6 straight joint is newly included for wide variety of vehicle models.