Adjustable 6AN EFI Fuel Pressure Regulator Return Bypass for Most Vehicles with EFI System Gasoline and E85 Ethanol Compatible Not For Diesel Nylon Braided Line Not Compatible With E85 30 to 70 PSI Regulation and Simple Install

Adjustable 6AN EFI Fuel Regulator Kit for EFI Systems
✔️ 30-70 psi adjustable; gauge included; complete install kit

This adjustable fuel pressure regulator is designed for vehicles with EFI systems, providing a reliable return-bypass setup that maintains stable pressure for precise injector metering. It supports gasoline and E85, with nylon braided line not compatible with E85. Not for diesel.

✅ 30-70 psi adjustable range for precise fuel pressure tuning
✅ Compatible with gasoline and E85 (nylon braided line not E85 compatible)
✅ Complete kit includes regulator, pressure gauge, bracket, plugs, fittings, and 3 braided lines
✅ Note: 6AN to M12x1.25 and 6AN to M14x1.5 fittings are for fuel rail use only; installing on the regulator can cause leaks
✅ NPT pressure gauge port requires thread sealant tape for a leak-free seal

💡 What is a 6AN EFI fuel pressure regulator used for in modern car EFI systems?

This handy piece keeps fuel pressure steady for accurate injector flow and reliable performance.

- Maintains consistent pressure across RPM ranges - Improves fuel metering consistency for tuning - Easy to install in return-type EFI setups - Supports operation with gasoline and E85 where permitted