6AN PTFE Fuel Line Kit 25FT for LS Swap EFI E85 Turbo Oil Coolant Transmission Features: Versatile Application Range: The PTFE nylon braided fuel line kit is engineered for a wide range of high-performance automotive uses, including EFI LS Engine Swaps, fuel injection systems, and aftermarket conversions. It’s ideal for handling fuel supply and return, turbocharger oil feed and boost lines, transmission cooling circuits, carburetor setups, vapor and vacuum lines, and other fluid transfer scenarios under high temperature and pressure .