HOLLEY EFI 3.5 BAR MAP SENSOR # HO554-134HOLLEY EFI 3. 5 BAR MAP SENSOR # HO554 134 MAP Sensors, Holley EFI, 3. 5 Bar Range, 37. 45 psi, 1 8 in. 27 NPT, Output 0. 5 4. 5 V, Stainless Case, for Forced Induction Engines, Each MAP Sensor Pressure Rating (bar): 3. 5 bar MAP Sensor Pressure Rating (psi): 37. 45 psi Wiring Harness Included: Yes Quantity: Sold individually. Notes: Sensor has 1 8 27 NPT and a linear voltage output of 0. 5 4. 5 volts. Holley MAP Sensors Whether your engine has forced