Fuel System Line Kits

Stop worrying about fuel starvation or leaks. Whether you are executing a high-stakes LS swap or a meticulous classic restoration, the EVIL ENERGY fuel line kit is your ultimate reliability upgrade. Our evil energy fuel system is purpose-built to deliver the precise, consistent flow required by today’s high-horsepower engines. Unlike standard aftermarket fuel lines, every Evil Energy fuel line features advanced multi-layer reinforcement to shrug off intense engine heat and chemical corrosion.

Universal Fuel Line Kit: Versatility for Every Build

Plumbing a custom fuel system shouldn't be a headache. Our universal fuel line kit selection is engineered to simplify even the most complex layouts.

  • Classic Performance: Includes specialized carburetor fuel line kit options for vintage power.
  • Extreme Routing: Need to navigate tight spaces? Our flexible fuel lines and flex fuel line variants provide maximum clearance without the risk of kinking.
  • Modern Fuel Ready: These fuel line kits are fully compatible with ethanol blends, serving as a long-lasting universal fuel hose solution for modern street and track cars.

The AN Fuel Line Kit: Precision & Leak-Free Security

Eliminate the risk of engine fires and pressure drops with our precision an fuel line kit.

  • Bulletproof Protection: Every braided fuel line kit features a rugged, reinforced outer layer to survive extreme abrasion.
  • Professional Standards: We eliminate the guesswork by including a complete fuel line fitting kit and fuel line fittings kit in every bundle.
  • Track-Proven Durability: Designed for the high-vibration stress of off-road and track racing, our braided fuel line kit keeps you in the race.
  • Aesthetic Excellence: Use our custom fuel lines to give your engine bay a show-quality finish.
  • Ready to Bolt On: Each fuel hose kit comes with high-pressure swivel ends and adapters for a seamless install.

Why Pros Choose EVIL ENERGY Aftermarket Fuel Lines

When you choose a universal fuel line from EVIL ENERGY, you aren't just buying parts—you are investing in safety. Every universal fuel hose we sell undergoes rigorous high-pressure testing to ensure it exceeds racing standards. From the first fuel line fitting kit you select to the final fuel line kit installation, we provide the hardware and confidence needed for a world-class finish.

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Universal Fuel Line Kit

EVIL ENERGY provides professional-grade fuel system solutions, featuring high-flow 300LPH External Fuel Pumps, EVIL ENERGY Fuel Filters with precision filtration from 10 to 100 microns, and Adjustable Fuel Pressure Regulators supporting 20-120 PSI to ensure stable and precise pressure for LS swaps and racing applications. Constructed from high-strength aluminum to withstand harsh environments, the entire line is E85 Ready for seamless compatibility with ethanol fuels. Backed by a 1-year warranty and expert support, EVIL ENERGY is the reliable choice for automotive enthusiasts worldwide looking to upgrade their fuel delivery systems.

Selection depends on your engine's horsepower and fuel demand. An AN6 fuel line kit is typically sufficient for up to 500HP, while an AN8 or AN10 fuel line kit is recommended for high-output turbo or racing applications to ensure consistent flow.

A braided fuel line kit is significantly better for performance builds. While rubber is standard, an evil energy fuel line with a braided outer layer provides superior heat resistance, abrasion protection, and higher pressure ratings for aftermarket fuel lines.

For ethanol blends, PTFE (Teflon) is the best material. While a standard braided fuel line kit works for gasoline, E85 requires the chemical immunity of PTFE to prevent the degradation often seen in a basic universal fuel hose.

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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
$0.00
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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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  • Silver Black
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  • Red
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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
$62.09
$70.99
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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

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
$76.99
$112.49
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  • [Weld on Fitting][AN to ORB Fitting]
    EVIL ENERGY 10AN Oil Catch Can Breather Tank with 10FT CPE Fuel Line Kit (Upgraded Version)

    Core Advantages

    • 750ML catch can + 10FT AN10 CPE line; 6061-T6 aluminum + CPE/stainless steel/nylon construction.
    • Oil separation protects engine; built-in drain valve for easy maintenance.
    • Two options (weld-on/ORB fittings) for universal vehicle compatibility.

    Key Specs

    • Line: 13.5±1mm ID / 20±1mm OD / 625PSI / -30℃~120℃ / 101.6mm bend radius.
    • Fittings: 7/8-14 UNF (AN10) / 0°/90° swivel / 1500PSI.
    • Catch Can: 750ML / 3/8-18 NPT drain valve.

    Application & Support

    • Suitable for street cars, racing builds, off-road vehicles (most makes/models).
    • 1-year warranty + 90-day free returns + fast shipping.
    $82.99
    $82.99
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  • EVIL ENERGY Dual Size Fuel Line Kit (6AN + 8AN / 8AN + 10AN) – 20FT Nylon Braided CPE Hose with 12PCS AN Fittings Kit[6AN+8AN]
    EVIL ENERGY Dual Size Fuel Line Kit (6AN + 8AN / 8AN + 10AN) – 20FT Nylon Braided CPE Hose with 12PCS AN Fittings Kit
    • Two AN Sizes, One Complete Kit
      Includes two different AN hose sizes (6AN + 8AN or 8AN + 10AN) to simplify fuel feed/return or oil cooler routing without adapters.
    • High-Strength Nylon Braided CPE Hose
      CPE inner core with nylon braid offers excellent resistance to fuel, oil, heat, and abrasion for reliable street and performance builds.
    • High Pressure Performance Rated
      Supports up to 750 PSI working pressure (6AN/8AN) and 625 PSI (10AN), suitable for high-demand fluid transfer systems.
    • Wide Fluid Compatibility
      Safe for gasoline, race fuel, diesel, engine oil, transmission fluid, coolant, and hydraulic fluids—one kit for multiple systems.
    • Cleaner Routing, Fewer Leak Points
      Includes 20FT total hose and 12 precision AN fittings, helping achieve professional routing while reducing connection failures.
    $95.99
    $95.99
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  • [CPE With Fittings,15 Gallon][PTFE With Fittings,15 Gallon]
    EVIL ENERGY Upgraded Fuel Cell Tank Kits-Efficient Fuel System Solutions 5/10/15 Gallon

    Package Includes：

    1. Fuel Cell Gas Tank‎*1（5 / 10 / 15 Gallon Optional)
    2. Fuel Pressure Regulator*1
    3. 300LPH Inline Fuel Pump Electric*1
    4. ‎6AN to M18*1.5 Fitting Adapter*1
    5. M12*1.5 to 6AN Fitting Adapter*1
    6. 50mm Fuel Filter Mounting Bracket*2
    7. 60mm Fuel Filter Mounting Bracket*1
    8. 20FT 6AN CPE/PTFE/Antistatic PTFE Fuel Line*1
    9. AN10 to AN6 Male Flare Reducer Adapter*2
    10. 100 Micron Inline Fuel Filter with 6AN 8AN 10AN Adapter*1
    11. 10 Micron Inline Fuel Filter with 6AN 8AN 10AN Adapter*1
    12. 90 Degree Fittings *4
    13. 0 Degree Fittings *8
    $90.24
    $90.24
    $123.99
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FAQs about Fuel System Line Kits

What are the benefits of an AN fuel line kit over hose clamps?

An an fuel line kit uses threaded connections and a precision fuel line fittings kit to create a leak-proof, high-pressure seal. This is much safer and more reliable than traditional clamps for a high-performance fuel hose kit.

Always use a high-quality fuel line fittings kit and ensure the hose is properly seated before tightening the swivel ends. For aftermarket fuel lines, choosing a universal fuel line kit with matched components ensures the best seal for your evil energy fuel system.

Yes, a specialized carburetor fuel line kit is designed to handle the lower pressures of carb systems while providing the aesthetic of custom fuel lines. It simplifies the connection between the pump and the carb bowls.

Costs vary based on the complexity of your evil energy fuel system. A DIY universal fuel line kit can range from $50 to $200, depending on length and the included fuel line fitting kit, whereas professional replacement can exceed $500 in labor.


Absolutely. An evil energy fuel line kit is a top choice for LS swaps because it includes the flexible fuel lines and an fuel line kit adapters needed to bridge the gap between classic chassis and modern EFI engines.

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