Feature: Built as an all-in-one fuel filter with a pressure regulator, it delivers a steady 58 PSI (4 BAR) to the fuel rail with 6AN adapter fittings for easy installation in LS swap fuel pressure regulator setups. The integrated 10-micron filter ensures only clean fuel reaches your engine, helping to reduce wear, prevent clogging, and extend engine life.
The EVIL ENERGY fuel pressure regulator comes with a stainless steel bracket and rubber insulator, designed for secure mounting with 5/16 bolts. This durable setup reduces vibration and enhances stability, ensuring long-lasting performance of your LS fuel regulator or fuel filter regulator in EFI conversions and LS swaps.
This fuel filter with pressure regulator is ideal for LS swap fuel pressure regulator applications, creating a reliable returnless fuel system. It can be installed anywhere between the fuel tank and the engine, but placing it in the engine bay is recommended for more consistent fuel pressure. Compatible with LS1 fuel filter regulator and LS3 fuel regulator setups, it maintains a steady 58 PSI for EFI systems.
The EVIL ENERGY fuel pressure regulator for LS is engineered to provide both filtration and precise pressure control for EFI conversions and LS engine swaps (LS1, LS3, Gen III/IV small block V8s). Whether used as an LS fuel filter regulator or in custom EFI builds, it guarantees clean fuel delivery, protects your engine, and supports long-term reliability for performance enthusiasts.
Q1: What does the EVIL ENERGY Fuel Filter Regulator do?
The EVIL ENERGY fuel pressure regulator combines a fuel filter and a regulator in one unit. It delivers a stable 58 PSI to EFI systems while returning excess fuel back to the tank. This makes it ideal for LS swap fuel pressure regulator conversions and returnless EFI fuel systems.
Q2: Is this fuel filter regulator compatible with LS engines?
Yes. This LS fuel filter regulator is designed for LS-based engines including LS1, LS3, and Gen III/IV small block V8s. It is commonly used in Chevrolet 4.8L, 5.3L, and 6.0L engines (1999–2014) for EFI conversions and swap projects.
Q3: What fuel pressure does it provide?
The regulator delivers a consistent 58 PSI (4 BAR) fuel pressure, which is the required setting for most LS EFI systems. This ensures proper engine performance, stable fuel delivery, and long-term reliability.
Q4: Can this fuel filter regulator be used for LS swap EFI conversions?
Absolutely. The EVIL ENERGY fuel filter regulator is widely used in LS swap fuel pressure regulator kits. It simplifies installation by combining filtration and regulation into one unit, saving space and improving efficiency.
Q5: Does it come with fittings and installation hardware?
Yes. The package includes the fuel filter regulator, 3/8-inch EFI push-on lock fitting (inlet), 5/16-inch EFI push-on lock fitting (return), and a 6AN male to 3/8 male push-on EFI fitting (outlet). A mounting bracket and rubber insulator are also included for easier installation.
Q6: Where should I install the LS fuel filter regulator?
It can be installed anywhere between the fuel tank and the engine. However, we recommend installing it in the engine bay for more even fuel pressure and easier maintenance.
Q7: Is the EVIL ENERGY fuel pressure regulator suitable for returnless systems?
Yes. This fuel filter with pressure regulator is designed specifically for returnless LS fuel systems, making it perfect for EFI conversions and LS engine swaps.