Easy LS-Engine Swaps; No Complicated OE-Harness Re-Working or Costly PCM-Tuning FAST™ engineers have developed the simplest plug-and-play, self tuning engine control system on the market for the LS series of engines. The FAST™ EZ-EFI 2.0® LS Self Tuning Engine Control Kit is the easiest way to get your LS transplant up and running without the complex PCM flashing and harness reworking required with the stock unit. This kit features all of the advantages of the award-winning EZ-EFI 2.0® ECU, plus it includes the EZ-LS™ Ignition Controller and uses stock or aftermarket LS injectors, sensors and coil packs.