Review on 10726 Stage Power Control Module by Mike Carter

Engine ECU Wiring Harness Connector Mechanical Lock Module. But the module latch is made of flimsy plastic and pops out about a quarter the length of the computer harness connector. JET Performance needs to improve the mechanical interlocking of this module to ensure it does not trip due to normal vehicle vibration. 2009 Buick Lucerne CXL 3.9L Flex Fuel. MPG before/after installation results: OEM MPG calculator = 23.8 MPG, manual calculation = 21.8 MPG. Results after installation: OEM MPG calculator (lie meters) = 24.0 MPG, manual calculation = 23.5 MPG. MPG increased by 7.8%. Performance results before/after installation: Significant, potentially improved acceleration and climb performance. Slight to moderate increase in performance possible. Do not buy this module for a significant increase in performance. Buy it for around an 8% increase in MPG with the added benefit of a slight improvement in performance. I paid $201 direct from the factory so have a look around.