EVIL ENERGY 58 PSI Fuel Regulator Kit with 300 LPH Pump — LS-swap Ready, 10‑Micron Filter

EVIL ENERGY’s kit pairs a 58 PSI adjustable fuel-pressure regulator with a high-flow 300 LPH external electric fuel pump and built-in 10-micron filtration, engineered for LS-swap EFI installations.

This compact kit delivers regulated high-pressure fuel and filtration tailored to GM LS-series swaps (4.8L, 5.3L, 6.0L) and other EFI conversions. It combines a stable 58 PSI regulator designed for engine-bay mounting with an external, below-tank 300 LPH pump rated for high flow and pressure. All necessary fittings, adapters and a mounting bracket are included to simplify plumbing and speed installation for common LS EFI projects.

How does the regulator keep fuel pressure steady under load?

The EVIL ENERGY regulator is preset to maintain 58 PSI, giving consistent fuel pressure to the injectors during acceleration and cruise. Its integrated 10-micron filter protects the system from particulates that can upset spray patterns and clog injectors.

• Preset 58 PSI control for stable injector delivery
• 10-micron filter element for contaminant removal
• Engine-bay mounting designed to minimize plumbing runs
• Robust construction to resist tuning-related pressure changes

Will the 300 LPH pump support upgraded LS engines and EFI conversions?

The included external electric pump produces up to 300 liters per hour at 13.5V, suitable for many high-horsepower street and light race applications when paired with a 58 PSI regulator. It’s rated to operate reliably under elevated pressures and a wide temperature range, making it versatile for fuel delivery upgrades.

• Max 300 LPH flow to feed higher injector demand
• Works up to ~75 PSI for pump safety under backpressure
• Wide operating temperature range (-68°F to 194°F)
• 12V DC compatibility for standard automotive EFI systems

What fittings and installation options come with the kit?

The kit includes a comprehensive set of adapters and quick-disconnect fittings to link the pump and regulator to common LS fuel plumbing. A stamped bracket and multiple adapters reduce the need for extra hardware so you can mount the pump below the tank and the regulator in the engine bay without hunting parts.

• Mounting bracket for pump placement under the tank
• M12x1.5 to AN6 and AN10 to M18x1.5 adapters included
• AN6 and AN10 quick-disconnect fittings for flexible hose choices
• Everything needed to complete a typical LS EFI plumbing run

Is this kit compatible with my engine and fuel type?

The EVIL ENERGY components are designed around 1999–2014 GM LS V8 engines (4.8L, 5.3L, 6.0L) and other EFI conversions that use similar plumbing and pressure requirements. The pump and regulator are suitable for gasoline and compatible diesel setups where an external pump and high-pressure regulator are required.

• Engine compatibility: LS-series 4.8L, 5.3L, 6.0L (1999–2014)
• Designed for EFI systems using 12V DC electric pumps
• Compatible with gasoline and certain diesel fuel applications
• Intended for below-tank pump mounting and engine-bay regulator placement

Who is this for: This EVIL ENERGY kit suits mechanics, fabricators and DIY builders performing LS swaps or upgrading EFI fuel systems who need a compact, high-pressure regulator with filtration and a dependable external pump. It’s especially useful for projects that require higher flow than stock in-tank pumps can supply, or for vehicles where relocating the pump and fitting a dedicated regulator delivers more consistent performance.