This is very similar to the Spec S only it features twin solenoid design for better response and increased boost pressure, a boost meter to display pressure, a peak hold function, and a boost limiter with audible warning. It also has four programmable channels to set boost, and the capability of holding boost pressure at 2.5 kg/cm2 (36 psi). Like the Spec S this unit is fully universal and will work on a wide range of vehicles. |