Since factory meters do not provide enough information to effectively monitor the health of engines, aftermarket meters become an absolute necessity for every car enthusiast. A'PEX engineers developed the EL System Meters to be both purposeful and attractive to suit the needs of each and every car enthusiast. A'PEX meters are engineered to be accurate, reliable and as physically slim as possible. Electronic meters are available in boost (KPA only), EGT, pressure, and temperature. Mechanical boost meters are available in PSI and KPA.