LS -6AN Fuel Filter 58 Psi Regulated

• Integrated AN6 inlet, outlet, and return fittings for use with AN6 fuel lines
• Shorter return line requirement reduces amount of overall fuel line needed
• Built in 58psi regulator for all LS and Hemi swaps and most aftermarket EFI systems
• Utilizes 5 micron filter media to protect your expensive fuel injectors
• Includes mounting bracket with ground strap and rubber insulator for quiet operation
• No need for AN adapters that create additional potential fuel system leak points
• Lower cost alternative than using a stock GM filter with AN adapter fittings
• Works with in-tank or externally mounted EFI fuel pumps
• No need for standalone regulator or pressure gauge and the extra fittings they need
• Fully welded steel housing and fittings with paper filter element
• Supports up to 450hp naturally aspirated applications
• Filter bracket features 3/8-inch mounting hole (mounting fastener not included)

Our 2-in-1 LS Fuel Filter Regulator Is the Perfect Solution to Your LS Swap Fuel System Needs

Plumbing an EFI fuel system is quite a bit different than the carbureted fuel systems found on our favorite hot rods, muscle cars, and classic trucks. The single 5/16-inch steel line, mechanical fuel pump, and screw in fuel filter at the carb will flat out not cut it when you’re either adding aftermarket EFI to your vehicle’s current engine or swapping in something like the popular LS engine or modern Hemi. From the fuel pump to the fuel line, everything must be upgraded to handle the higher volume and pressures that are involved with electronic fuel injection.

Two critical aspects of an EFI fuel system are the higher filtration requirement and the need to regulate the electric fuel pump’s pressure. Most EFI systems utilize between a 5 and 10 micron “post” filter (meaning after the pump) to protect the sensitive and fine internals of the fuel injectors themselves. A fuel pressure regulator is sometimes used in a carbureted application, but it is mandatory with EFI. You’ll often find factory regulators mounted right on the engine’s fuel rails, or aftermarket models mounted on the firewall or inner fender. These require additional fuel line and fittings to plumb into the EFI fuel system, creating additional expense and potential leak points.

A better solution that many LS swap builders have come to love is to use the C5 Corvette’s factory LS fuel pressure regulator and filter assembly. This filter utilizes GM’s corporate quick disconnect fuel line fittings for servicing the filter/regulator, however these do not provide easy compatibility for use with the typical “AN” aftermarket fuel lines used with EFI conversions and LS swaps. The best solution used to be using quick connect to AN adapter fittings. However, these adapters increased the cost of the fuel line routing and provided additional potential leak points in the high pressure fuel system. Eliminating the need for adapters by adding the AN fittings directly to the filter/regulator solves both problems and that’s exactly what we did with our Deluxe AN6 LS Swap Fuel Filter Regulator.