Description This kit isnt fully displayed in the advertised picture. This is a complete kit which includes everything you need for plug n play. ONLY WORKS WITH REFLEX PLUS EQUIPED B58 GEN 1 F SERIES BMW AND GEN 2 SUPRA What’s included with the kit: Ethanol Content Sensor VS Custom Plug & Play Fuel Line VS Custom Plug & Play Wiring Harness What advantages does this kit have over other solutions: 100% Plug and Play Kit Fuel Line Kit 100% Plug and Play Wiring Harness Installs in 90 minutes Easy to uninstall, no wires to repair or cut. EcuTek RaceRom & MHD Plus will allow you to datalog ethanol on your computer and phone app. You can also have your tuner hijack the sports display to show ethanol content.     How does it work: The combination of new fuel lines and ECA allows for a very precise ethanol content reading, which allows us to adjust our calibration in real-time to match the ethanol content. That means for example, if you have half a tank of pumpgas and fill the rest with Ethanol, creating an effective ethanol content of e50 let’s say, our calibration will make crucial adjustments to a variety of factors, like ignition timing, target air/fuel ratios, hot & cold start cranking settings, and max boost settings; all to produce the best performance possible for the current conditions. The higher the ethanol content of the fuel you’re running, the more power you’re going to automatically produce.