Fuel System

Professional Performance: EVIL ENERGY Fuel System Solutions

Building a high-output engine requires a precision-engineered Fuel System. Whether you are restoring a classic with a Carburetor setup or plumbing a modern LS Swap Fuel System, EVIL ENERGY auto parts provide the reliability and flow capacity needed to protect your investment and maximize horsepower. Our complete Fuel System Kit range covers every component from the tank to the intake.

Our Core Fuel System Categories

  • Fuel Pumps Kit: The heart of your Fuel System, our pumps provide consistent high-pressure delivery for both street and track applications.
  • Fuel Filter Kit: Essential for protecting your injectors or Carburetor, our filters utilize high-micron stainless steel elements to remove contaminants without restricting flow.
  • Fuel Pressure Regulators Kit: Maintain the perfect PSI for your EFI System. Our regulators are adjustable and feature a boost-reference port for forced induction builds.
  • Fuel Cell Kit: Ideal for racing and custom projects, our fuel cells offer a secure, baffled reservoir to prevent fuel slosh and ensure a steady supply to your Fuel Pumps Kit.
  • Fuel Rails: CNC-machined for precision, our Fuel Rails provide a larger internal bore to dampen pressure pulses and supply equal fuel to every cylinder in high-horsepower EFI fuel systems.
  • Carburetor: We offer specialized fittings and Fuel Line Kit options specifically designed to interface with performance Carburetor setups.

Engineered for EFI and LS Swap Projects

A modern EFI System (Electronic Fuel Injection) demands a higher level of integrity than traditional setups. EVIL ENERGY fuel systems are designed to bridge the gap between affordability and professional-grade performance:

  • E85 Compatibility: Every component in our Fuel System Kit is tested for compatibility with corrosive ethanol fuels, ensuring your EFI fuel systems won't degrade over time.
  • LS Swap Ready: Our Fuel Rails and Fuel Pressure Regulators Kit is a staple in the LS Swap Fuel System community, offering a 'plug-and-play' solution for GM's legendary V8 engine.
  • Superior Durability: By choosing evil energy fuel systems, you benefit from components rated for high-pressure environments, often exceeding 3000 PSI burst ratings on associated plumbing.

Why Choose EVIL ENERGY for Your Fuel System?

Choosing the right Fuel System components is critical for vehicle longevity and safety. EVIL ENERGY auto parts are engineered to meet the rigorous demands of modern high-performance builds.

The Gold Standard for LS Swap Fuel Systems

What does LS swap mean? It is the process of retrofitting a GM LS-series engine (where LS stands for Luxury Sport) into a different vehicle chassis. Because an LS Swap Fuel System requires consistent high pressure to function correctly, our 6an PTFE Fuel Line Kit is the preferred choice for enthusiasts. You can LS swap almost any vehicle when you have a reliable Fuel Line Kit that supports the flow demands of these legendary engines.

Optimized for Advanced EFI Fuel Systems

An EFI system (Electronic Fuel Injection) precisely manages fuel delivery to improve horsepower and engine efficiency. Modern EFI fuel systems operate at significantly higher pressures than carbureted setups, making a high-quality EFI System plumbing essential. EVIL ENERGY fuel systems utilize PTFE technology to ensure your EFI fuel systems remain leak-free and fully compatible with corrosive fuels like E85.

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High-Performance Fuel System

Welcome to the EVIL ENERGY High-Performance Fuel System collection—engineered to unlock the true potential of your V8 engine. Whether you are a high-performance enthusiast chasing maximum speed, a DIY tuner undertaking a complex LS Swap Fuel System project, or a restorer dedicated to bringing a classic vehicle back to its prime performance, we offer the complete solution for your fuel supply needs, from the tank to the injectors or carburetor.

The Fuel System is the comprehensive network of components responsible for safely storing, filtering, and delivering gasoline or diesel fuel from the fuel tank to the engine's combustion chambers. It ensures the engine receives the precise amount of fuel required for optimal performance and efficiency, whether that fuel is supplied via a carburetor or an EFI System.

While modern classifications vary, the four primary historical and technological categories of Fuel System designs are:
1. Carburetor Systems: Uses vacuum to draw fuel into the air stream (Older classic cars, e.g., using a 4-Barrel Carburetor).
2. Throttle Body Injection (TBI) / Single Point Injection: Uses one or two injectors mounted in a throttle body (Early electronic injection).
3. Port Fuel Injection (PFI) / Multi-Point Injection (MPI): The most common EFI System, where each cylinder has its own dedicated injector located in the intake manifold.
4. Direct Injection (DI): Fuel is injected directly into the combustion chamber under very high pressure (Modern performance and efficiency engines).

Our evil energy fuel systems are more than mere replacement parts; they are a commitment to performance and longevity. Through integrated design and premium materials, we help you master complex Fuel System challenges, ensuring your modification project proceeds smoothly and translates directly into measurable horsepower gains.

Explore the EVIL ENERGY high-performance Fuel System collection today, and guarantee your V8 engine the consistent, massive power supply it needs!

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Featured Products

EVIL ENERGY PTFE Hose End Fitting for PTFE Hose Only (3/4/6/8/10/12AN) - Black - EVILENERGY[Straight,1PC]
EVIL ENERGY PTFE Hose End Fitting for PTFE Hose Only (3/4/6/8/10/12AN) - Black

Engineered for high-pressure, high-temperature fuel systems, the EVIL ENERGY PTFE Hose End Fitting delivers leak-proof performance for PTFE fuel lines in performance builds, LS swaps, boosted engines, and ethanol-based fuel setups. Made from 6061-T6 aluminum with a 360° swivel design, these AN fittings ensure a clean, secure, and easy-to-assemble connection—ideal for builders who demand durability and precision.

$8.99
$8.99
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[Black,Without Bracket] black inline evil energy fuel filter with directional arrow and multiple AN fuel line fittingsevil energy fuel filter kit with stainless steel inline fuel filter, AN fittings, and mounting hardware
EVIL ENERGY Inline Fuel Filter with 6AN 8AN 10AN Adapter and Bracket Universal 10/30/40/100 Micron - Black

[Application] Universal fuel filter, includes an6, an8, an10 adapters for different size applications. With mounting bracket keeps the engine bar stylish and clean.

  • [Material] Aluminum alloy fuel filter can and stainless steel filter element.
  • [O-ring] The o-ring provides a tight seal for fittings and end caps.
  • [Function] Can be used for filtering gasoline, diesel, etc. Captures contaminant particles of 10 micron and above to protect the fuel system of the vehicle.
  • [Feature] Removable design, easy to clean or replace filter element at regular time.
  • [Installation Tips] We have debugged the installation direction of the fuel filters before delivery. Please check and ensure the closed end of the filter element docks with the spring. Let the liquid flow following the arrow from the spring end to the other end, and the fuel filter will serve longer.
$23.99
$23.99
$24.99
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[20FT] EVIL ENERGY PTFE Fuel Line Kit, complete black hose & fittings set, 180-day return[16FT] EVIL ENERGY PTFE Fuel Line Kit, black braided hose, fittings, free shipping & return
EVIL ENERGY 4/6/8/10AN PTFE Fuel Line Kit | E85 Nylon Braided Hose | 16/20FT Black Black with Comprehensive Fittings

Three-Layer Construction: Our fuel lines are constructed with a triple-layer material for unparalleled performance and protection. The innermost layer is made of PTFE for maximum chemical resistance, a braided stainless steel layer for strength and durability, and an outer nylon layer for added abrasion resistance and protection.

Multiple Sizes: We offer our fuel lines in 4AN, 6AN, 8AN, and 10AN sizes, catering to the diverse needs of various fuel delivery systems.

Fitting Types: Our kit includes a variety of fittings at 0°, 90°, 45°, and 180° angles, ensuring versatility and flexibility during installation, allowing for custom routing in tight or complex spaces.

Precision Fit and Leak-Free Performance: The combination of the PTFE inner layer and the high-quality aluminum hose ends ensures a precision fit and leak-free connection, even under extreme pressure, providing a safe and reliable fuel system.

$62.09
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[20FT] EVIL ENERGY PTFE Fuel Hose Kit, complete black braided hose & fittings set[10FT] EVIL ENERGY PTFE Fuel Hose Kit, complete black braided hose & fittings set
EVIL ENERGY 6AN 3/8-inch PTFE LS Swap EFI Fuel Line Fitting Kit | E85 Nylon Braided Fuel Hose With Fittings 10-26FT
  • Parameter: Working temperature range: -76℉ to 446℉ (-60℃ to 230℃). Maximum working pressure: 1,500 PSI. Bursting pressure: 4,500 PSI.
  • Applicable Medium: EVIL fuel line kits are suitable for all automotive fuels, lubricants, and coolants.
  • Suitable for Wide Usage: The PTFE nylon braided fuel line is ideal for use in various high-temperature and high-pressure applications.
  • Notice: The PTFE hose is relatively hard and can't be bent or folded in half. Professional installation is highly recommended.

PTFE nylon braided fuel line kit offers superior durability for high-pressure and high-temperature applications, making it perfect for EFI systems, turbo setups, and all automotive fuels.

$76.99
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$112.49
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  • EVIL ENERGY Inline Fuel Filter 10/30/40/100 Micron with Barb 1/2-inch, 3/8-inch, 5/16-inch Fitting Adapter Bundle with AN Fitting WrenchEVIL ENERGY Inline Fuel Filter 10/30/40/100 Micron with Barb 1/2-inch, 3/8-inch, 5/16-inch Fitting Adapter Bundle with AN Fitting Wrench
    EVIL ENERGY Inline Fuel Filter 10/30/40/100 Micron with Barb 1/2-inch, 3/8-inch, 5/16-inch Fitting Adapter Bundle with AN Fitting Wrench - Black
    ---!@!start!@!---Specifications---!@!end!@!--- Product Details Brand EVIL ENERGY Bundle Includes Inline Fuel Filter × 1 + AN Adjustable Wrench × 1 Filtration Grades 10 / 30 / 40 / 100 micron Filter Material Aluminum housing + Stainless steel filter element Adapter Sizes 1/2-inch, 3/8-inch, 5/16-inch barb...
    $69.98
    $69.98
    • Black
    • Red
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  • EVIL ENERGY 25FT Aluminum Coiled Fuel Line Kit with Fuel Filter Combo 10/100 MicronEVIL ENERGY 25FT Aluminum Coiled Fuel Line Kit with Fuel Filter Combo 10/100 Micron
    EVIL ENERGY 25FT Aluminum Coiled Fuel Line Kit with Fuel Filter Combo 10/100 Micron
    ---!@!start!@!---Specifications---!@!end!@!--- Brand EVIL ENERGY Kit Type Complete Fuel System Combo Kit Vehicle Universal — Most Car / Truck / SUV Fuel Type E85 / Gasoline / Diesel Compatible Package Contents 25FT Aluminum Tubing*1Tube Cutter*1Tube Bender*1Deburring Tool*13/8-inch Tube Clamps*46AN Female to 3/8-inch Compression Fittings*610 Micron...
    $139.99
    $139.99
  • [Black][Silver]
    EVIL ENERGY Aluminum Fuel Cell Gas Tank with Level Sender – 5/10/15/20 Gallon Black Street Drift Fuel Tank + 4/6/8/10/12AN PTFE Fuel Line Kit, 20FT E85 Nylon Braided Fuel Hose

    A complete fuel cell + PTFE fuel line kitthat delivers lightweight durability, high-flow fuel delivery, and broad fuel compatibility—ideal for performance builds and custom fuel system upgrades.

    $149.99
    $149.99
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  • EVIL ENERGY EVIL ENERGY 750 CFM 4-barrel Carburetor Single Fuel Inlet 110 GPH Fuel Pump KitEVIL ENERGY EVIL ENERGY 750 CFM 4-barrel Carburetor Single Fuel Inlet 110 GPH Fuel Pump Kit
    EVIL ENERGY 750 CFM 4-Barrel Carburetor Complete Kit, Electric Choke Air Valve Secondary for Ford 460 V8
    ---!@!start!@!---Specifications---!@!end!@!--- Brand EVIL ENERGY Core Material 6061-T6 Aluminum Alloy (Carburetor/Regulator/Pump); Aluminum Housing+Stainless Steel Filter Element (Filter) Carburetor Barrels 4 CFM Rating 750 Carburetor Flange Square bore Choke Type Electric Choke Secondary Throttle Type Air Valve-Controlled Secondary Carburetor Fuel Inlet Single Carburetor Calibration Main Jets:#110...
    $680.99
    $680.99
  • Evil Energy 12V Electric Fuel Pump for Carburetor + 5-12PSI Adjustable Pressure Regulator Bundle High-Flow 90GPH External, E85/Gas Compatible - EVILENERGYInstallation diagram for the EVIL ENERGY 12V Electric Fuel Pump for Carb, showing the correct placement of a 100-micron pre-filter, a 40-micron post-filter, and a fuel pressure regulator.
    Evil Energy 12V Electric Fuel Pump for Carburetor + 5-12PSI Adjustable Pressure Regulator Bundle High-Flow 90GPH External, E85/Gas Compatible
    ---!@!start!@!---Specifications---!@!end!@!--- Electric fuel pump 12v for carburetor Inlet 3/8-inch Outlet 3/8-inch Installation Location External fuel pump Structural Category Electric fuel pump Structural Sub - Category Gear-type electric fuel pump Voltage 12V-13.5V Closed Pressure 14PSI Flow Rate 91.1-97.8GPH/345-370LPH(10-11PSI&5.6-6.0A) 84.5-91.1GPH/320-345LPH(7-9PSI&5.5-6.3A) Temperature Range -68°-194°F Max Power 88W...
    $145.99
    $145.99
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  • EVIL ENERGY E85 Compatible Fuel Filtration & Fuel Line Kit - Universal 6AN-10AN Inline Fuel Filter (10/30/40/100 Micron) + 20FT PTFE Braided Fuel Line (4AN-12AN, 3/16 Inch ID) - EVILENERGYEVIL ENERGY E85 Compatible Fuel Filtration & Fuel Line Kit - Universal 6AN-10AN Inline Fuel Filter (10/30/40/100 Micron) + 20FT PTFE Braided Fuel Line (4AN-12AN, 3/16 Inch ID) - EVILENERGY
    EVIL ENERGY E85 Compatible Fuel Filtration & Fuel Line Kit - Universal 6AN-10AN Inline Fuel Filter (10/30/40/100 Micron) + 20FT PTFE Braided Fuel Line (4AN-12AN, 3/16 Inch ID)
    ---!@!start!@!---Specifications---!@!end!@!--- 10/30/40/100Micron Fuel Filter Brand EVIL ENERGY Product Grade Replacement Part Material Filter Element: Stainless Steel, Fuel Filter Can: Aluminum Style Modern Fuel Filter 10 Micron30 Micron40 Micron100 Micron Material Aluminum alloy fuel filter can and stainless steel filter element OD 10 Micron: 1.25...
    $96.99
    $96.99
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  • EVIL ENERGY Fuel System Filtration & Delivery Bundle - 300LPH Inline Fuel Pump + Inline Fuel Filter 10/30/40100 Micron) - EVILENERGYEVIL ENERGY E85 Compatible Fuel Filtration & Fuel Line Kit - Universal 6AN-10AN Inline Fuel Filter (10/30/40/100 Micron) + 20FT PTFE Braided Fuel Line (4AN-12AN, 3/16 Inch ID) - EVILENERGY
    EVIL ENERGY Fuel System Filtration & Delivery Bundle - 300LPH Inline Fuel Pump + Inline Fuel Filter 10/30/40/100 Micron)
    ---!@!start!@!---Specifications---!@!end!@!--- 10/30/40/100Micron Fuel Filter Brand EVIL ENERGY Product Grade Replacement Part Material Filter Element: Stainless Steel, Fuel Filter Can: Aluminum Style Modern Fuel Filter 10 Micron30 Micron40 Micron100 Micron Material Aluminum alloy fuel filter can and stainless steel filter element OD 10 Micron: 1.25...
    $90.99
    $90.99
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  • [20-75PSI&75-120PSI,Red][20-75PSI&75-120PSI,Blue]
    EVIL ENERGY Fuel System Upgrade Bundle - 300LPH High Flow Electric Fuel Pump, Adjustable AN Fitting Wrench (3-16AN), & 20-140psi Fuel Pressure Regulator
    ---!@!start!@!---Specifications---!@!end!@!--- EFI Bypass Return Adjustable Fuel Pressure Regulator Compatible Systems Most vehicles' Electronic Fuel Injection (EFI) systems Fuel Compatibility Gasoline, E85, alcohol/ethanolNot compatible with diesel fuel; Nylon braided fuel lines not compatible with E85 Pressure Adjustment Range 30-70PSI 20-75&75-120PSI 30-80&80-140PSI Main Fitting Size 30-70PSI:6AN...
    $154.99
    $154.99
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  • [30-70PSI,255LPH Intank][30-70PSI,300LPH External]
    EVIL ENERGY EFI Fuel System Bundle: Universal Fuel Filter, Fuel Pump & Fuel Pressure Regulator

    Note: The color of the filter fittings and filter heads will be shipped randomly.(silver or black)

    $126.73
    $126.73
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  • Evil Energy LS EFI System - Master Kit | Intake Manifold & Fuel Rail for Gen III LS1, LS2 | Inline Fuel Pump | Fuel Filter | PTFE Fuel Hose - EVILENERGYEvil Energy LS EFI System - Master Kit | Intake Manifold & Fuel Rail for GM LS3 L92 V8 6.2L | Inline Fuel Pump | Fuel Filter | PTFE Fuel Hose - EVILENERGY
    Evil Energy LS EFI System - Master Kit | Intake Manifold & Fuel Rail for GM LS3 L92 V8 6.2L | Inline Fuel Pump | Fuel Filter | PTFE Fuel Hose

    Fuel Rail：
    - Fits: For For GM LS3 L92 V8 6.2L
    - Material: Billet aluminum construction
    - Includes: Mounting brackets, Crossover line, and Hardware 3/8" line diameter with -8 fittings

    Intake Manifold:
    - Finish: Satin
    - Material: Aluminum
    - Type: Single Plane
    - Includes: Intake Manifold、Mounting Hardware

    External Inline Fuel Pump Electric：300LPH
    ‎Fitting Adapter：6AN to M12*1.5&6AN to M18*1.5
    Fuel Filter Mounting Bracket：50mm&60mm
    PTFE Fuel Line： 40FT
    Inline Fuel Filter：10&100 Micron
    Fuel Pressure Regulator：20-120PSI
    PTFE Hose End Fitting：Straight,45 Degree,90 Degree

    $648.18
    $648.18
    $0.00
    Out Of Stock
    Out Of Stock
  • EVIL ENERGY EVIL ENERGY 0928400666 Diesel Fuel Pressure Regulator Compatible with Dodge Ram Cummins 2003-2007 Diesel 5.9LEVIL ENERGY EVIL ENERGY 0928400666 Diesel Fuel Pressure Regulator Compatible with Dodge Ram Cummins 2003-2007 Diesel 5.9L
    EVIL ENERGY 0928400666 Diesel Fuel Pressure Regulator Compatible with Dodge Ram Cummins 2003-2007 Diesel 5.9L
    About this item Replace OE Part Number: 0928400666, 4932457, 5183245AA. Inlet Port Diameter:0.12 in. Please check the OE number before purchasing, make sure this is the right part you need Fitment/Compatibility: compatible with 2003-2007 5.9L Dodge Ram Cummins Diesel Function: A adjustable fuel pressure...
    $29.99
    $29.99
    $29.99

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FAQs about Fuel System

What is the fuel injection system?

A fuel injection system is a precision delivery network designed to supply fuel to the engine’s cylinders. Controlled by the vehicle's computer, it replaces older carburetors to provide better fuel efficiency and lower emissions. A complete EFI system typically includes an electric fuel pump, high-performance fuel rails, fuel injectors, and a pressure regulator to ensure consistent delivery under all driving conditions.

In a modern fuel system, fuel is atomized into a fine mist by the injectors. This mist is sprayed into the intake manifold or directly into the combustion chamber (Direct Injection), where it meets incoming air. The engine control unit (ECU) calculates the perfect air-fuel ratio, ensuring the mixture is stoichiometric for complete combustion. For custom projects, an LS swap fuel system often utilizes high-flow fuel rails to maintain the volume required for high-performance air-to-fuel mixing.

Flushing the system is vital for removing carbon deposits. To do it professionally:

  • Step 1: Disconnect the fuel pump to disable the vehicle’s primary fuel system.
  • Step 2: Connect a pressurized cleaning canister directly to the fuel rails via the service port.
  • Step 3: Run the engine solely on the cleaning solvent until the canister is empty.
  • Step 4: Reconnect the fuel pump and check for leaks.
    For older or heavily contaminated vehicles, a comprehensive Fuel System Kit may be required to replace clogged filters and worn injectors.

Yes, high-quality fuel injector cleaners are effective for preventative maintenance. They contain detergents like PEA (Polyetheramine) that dissolve carbon buildup on injector tips. While they cannot fix a mechanically failed injector, regular use helps maintain the spray pattern and prevents EFI system hesitation.

The 'best' cleaner is one that contains a high concentration of PEA. Look for products labeled as 'Complete Fuel System Cleaners' rather than just 'gas treatments.' Brands like Chevron Techron, Red Line SI-1, and Seafoam are industry standards. If cleaning doesn't restore performance, you may need to upgrade to a performance-grade Fuel System Kit to ensure your injectors are getting the flow they need.

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