No longer have a reliable source of E85 around so selling my Fuel-It kit. Really neat little piece, uses a continental ethanol sensor to take the guesswork out of your blend. I used the iPhone app over Bluetooth which gives you E% and fuel temperature, there’s an Android app and also a 5V output if you wanted to connect to a gauge. Sits inline on top of the intake manifold before the HPFP. 15 mins to install, just goes in place of the stock fuel line. I’ve added a ground eyelet (goes to battery clamp) and an add-a-fuse (to the fuel pump fuse in engine bay fuse box). Lines are included (gates barricade ethanol safe high pressure hose) but personally I wouldn’t re-use the connectors, they’re 8 bucks off amazon (Dorman 800-085 3/8 bundy). This kit was $350 almost exactly a year ago, I’m selling for $225 shipped anywhere CONUS, PayPal fees included.