Holley - Terminator X LS1 24x/1x MPFI Kit (26-550-903)LS engine owners rejoice! The high price of standalone LS engine management have been Terminated! Introducing Terminator X and Terminator X Max. Two HOT new powertrain management systems from Holley that offer plug and play control for most LS engines starting at just $999. Why settle for a junkyard ECU with a cumbersome aftermarket tuning interface when you can get complete control of your engine, self learning fuel strategies and the proven, race