If you are looking for the original plug and play solution for adding flex fuel on Gen IV/Gen V GM V8 vehicles, the DSX Tuning flex fuel kit is it.
 
This is the right kit if you would like to add the ability to run anywhere from straight gasoline to straight ethanol as well as reveal the true power potential of your setup on your Corvette (C6) ZR1. 
 
Vehicles with a supercharger / blower especially benefit from the use of ethanol, and these allow you to seamlessly switch between gasoline and ethanol without having to monitor your fuel content or reflash your tune.This kit features 100% clip together plumbing... There is ZERO need for wrenches!
 
This kit uses:
Genuine GM Flex Fuel sensor
Plumbing kit made of corrosion resistant materials and fittings to ease installation
Plug and Play wiring harness made with OEM connectors and terminals crimped with OEM tooling
DSX Tuning 3D printed fuel line disconnect
 
PLEASE NOTE: It is possible to install this kit without tuning, but you will not gain the ability to switch fuels until the functionality is activated in the ECM through HP Tuners or EFILive.