EFI systems

EFI fuel pumps (Electronic Fuel Injection pumps) are high-performance electric fuel pumps engineered specifically for modern fuel injection systems. Unlike the low-pressure gasoline pump models used in traditional carburetor systems, EFI systems require higher, consistent fuel pressure (typically 43-58 PSI) to ensure the injectors can properly atomize the fuel. This precise delivery is critical for achieving optimal horsepower, torque, and fuel efficiency.

Why You Need to Upgrade to a High-Performance EFI Fuel Pump

When performing an engine upgrade (like an LS Swap), adding a turbocharger, or converting an older vehicle from a carburetor to EFI, the stock or standard fuel pump immediately becomes a bottleneck.

  • The Problem: Insufficient fuel flow causes the engine to 'lean out' under load. This not only results in significant power loss but can also lead to catastrophic engine damage.
  • The Solution: A high-flow EFI fuel pump (e.g., 300LPH or 405LPH) ensures your engine receives an ample fuel supply under all conditions, which is essential for unlocking its full potential.

The All-in-One Solution: The EFI Fuel Pump Kit

To simplify installation and guarantee system-wide compatibility, opting for a complete EFI fuel pump kit is the smartest choice. A professional kit typically includes:

Using a complete kit eliminates the guesswork and compatibility issues that can arise from sourcing parts individually, ensuring a seamless and reliable installation.

EVIL ENERGY Fuel Pump: Your Guarantee of Performance and Reliability

In the realm of performance fuel systems, the EVIL ENERGY Fuel Pump name is synonymous with reliability and power. EVIL ENERGY specializes in providing professional-grade fuel solutions for auto enthusiasts.

Whether you need a powerful standalone external electric fuel pump or a comprehensive EFI fuel pump kit for your EFI conversion, EVIL ENERGY offers rigorously tested products to ensure your high-performance vehicle runs strong and stable.

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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
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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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$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
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$112.49
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  • EVIL ENERGY 6/8/10AN Billet Inline Fuel Filter 30 Micron Aluminum Black for Car EFI & Carb Fuel Systems - EVILENERGY[8AN]
    EVIL ENERGY 6/8/10AN Billet Inline Fuel Filter 30 Micron Aluminum Black for Car EFI & Carb Fuel Systems
    ---!@!start!@!---Specifications---!@!end!@!--- Brand EVIL ENERGY Color Black Type Inline Fuel Filter Size 6/8/10N Filter Element 30 Miron Width 2.07inch（52.6mm) Height 1.22inch(31mm) Material Aluminum Alloy,Stainless Steel Compatibility not compatible with E85 fuel Application various vehicles, including cars, motorcycles, and boats. Fuel Filter Series   Fuel Filter...
    $19.99
    $19.99
    $19.99
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  • [Black,6AN Fittings] Complete EVIL ENERGY 290 LPH EFI Electric Fuel Pump kit in black, including blue AN fittings, mounting hardware, and packaging.[Black,6AN Fittings] Complete EVIL ENERGY 290 LPH EFI Electric Fuel Pump kit in black, including blue AN fittings, mounting hardware, and packaging.
    EVIL ENERGY 290LPH High Pressure External Electric Fuel Injection Pump 12V-13.5V - Reliable High-Performance for EFI Tuned/Modified Cars (AN Adapter Optional) - Black
    ---!@!start!@!---Specifications---!@!end!@!--- 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 Max Flow Rate 290LPH Closed Pressure 100PSI Flow Rate 275-290LPH(5.9-6.0PSI&8.0-8.9A) 185-217LPH(42PSI&11-11.3A) 115-145LPH(70PSI&12.5-13.5A) 30-95LPH(87-80PSI&14-14.5A) Temperature Range -68°-194°F Max Power 188W Application for...
    $42.99
    $42.99
    $58.99
    • Black
    • Silver
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  • [5 Gallon,30-70PSI,10 Mircon] EVIL ENERGY Fuel Cell Kit with regulator, inline pump, AN fittings, and installation accessories - high-performance fuel cell solution for EFI systems[Without Fuel Filter,Without Fuel Pressure Regulator] EVIL ENERGY aluminum fuel cell tank – black high-capacity racing fuel cell for automotive performance applications
    EVIL ENERGY EFI Returnless Fuel System kit-Fuel Cell Gas Tank Fuel Filter with Fuel Pressure Regulator Adjustable

    $34.59
    $34.59
    $0.00
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  • EVIL ENERGY Fuel Pump 300LPH With 10 Micron Filter PTFE Fuel Line Kits Universal EFI Fuel System Kit - EVILENERGYEVIL ENERGY Fuel Pump 300LPH With 10 Micron Filter PTFE Fuel Line Kits Universal EFI Fuel System Kit - EVILENERGY
    EVIL ENERGY Fuel Pump 300LPH With 10 Micron Fuel Filter PTFE Fuel Line Kits Universal EFI Fuel System Kit

    Upgrade your vehicle with the EVIL ENERGY EFI Fuel System Kit!
    This comprehensive kit includes a 10 Micron Filter with Bracket, a powerful 300LPH high flow fuel pump, and durable fuel lines made from PTFE. It also comes with a 10-micron fuel filter and all necessary fittings for easy installation.

    $389.99
    $389.99
    $319.59
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  • [CPE][PTFE]
    EVIL ENERGY Fuel System Kit for LS Engines - Complete AN6 PTFE/CPE Fuel Line Kit with Regulator, Pump & Fittings

    Fuel System Kit Specification

    Shared Components (Both Versions Include):
    ✔ LS Fuel Filter Regulator with 6AN adapter fittings
    ✔ 100 Micron Fuel Filter with 6AN, 8AN, 10AN adapters & mounting bracket
    ✔ Fuel Pump with pre-installed fittings
    ✔ Installation Adapters:

    • 2× 6AN to 3/8" NPT adapters
    • 1× AN6 to 5/16" Quick-Disconnect

    Version-Specific Components:
    ▸ PTFE Version:

    • 25FT 6AN PTFE Stainless Braided Hose
    • 8× Straight AN6 PTFE Swivel Fittings
    • 2× 45° AN6 PTFE Swivel Fittings
    • (Superior chemical/heat resistance, low permeation)

    ▸ CPE Version:

    • 25FT 6AN CPE Fuel Hose
    • 8× Straight AN6 Standard Swivel Fittings
    • 2× 45° AN6 Standard Swivel Fittings
    • (Cost-effective, flexible, durable)
    $289.99
    $289.99
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  • [With Bracket][Without Bracket]
    EVIL ENERGY 3.5Inch Inline Fuel Filter 100 Micron with 6AN 8AN 10AN Adapter 50MM Universal for Car, Motorcycle and Boats
    ---!@!start!@!---Specifications---!@!end!@!--- Brand EVIL ENERGY ID 0.8inch OD 1.25inch Housing Width 1.97inch Housing Length 3.5 inch Material Black Filter Element Rating 100 Micron Adapters Included AN6, AN8, and AN10 to AN10 ORB adapters Seal Structure Durable rubber O-ring (leak-free seal) Vehicles Compatibility Cars, motorcycles, boats...
    $39.99
    $39.99
    $45.99
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  • [CPE][CPE]
    EVIL ENERGY EFI Fuel Line Kit CPE Fuel Line 10 Micron Fuel Filter Return Style Kit
    PRODUCT DETAILS Brand EVIL ENERGY Application Universal Material CPE Fuel Hose: Nylon, Synthetic Rubber,Stainless Steel,  Fitting: Aluminum Hose Size 6AN 20FT/40FT Working Pressure 500 psi temperature range  -40℉ to 257℉ Maximum Pressure 2000 Pound per Square Inch Min Bending Radius 63.5mm Fuel Filter specifications...
    $145.99
    $145.99
    $165.99
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  • [30-70PSI,With Wrench][30-70PSI,Without Wrench]
    EVIL ENERGY All-in-One EFI Fuel System Bundle|EFI Bypass Fuel Pressure Regulator & CPE Fuel Line & Adjustable 3-16AN Wrench (Black)

    Core Components: EFI bypass fuel pressure regulator (30-70PSI/20-120PSI), CPE fuel line kit (6AN+8AN/8AN+10AN, 20FT x 2), adjustable 3-16AN wrench (optional).

    Key Benefits: Pre-matched compatibility (no mismatched parts); tailored variants for daily/modified/racing use; durable 6061-T6 aluminum (regulator) + reinforced CPE (lines); 1-year warranty.

    Applications: Most EFI vehicles (LS swaps, import tuners, race cars); fuel supply/return lines, transmission cooler lines, turbo lines.

    What's Included: Regulator + gauge + fittings, fuel lines + swivel fittings, optional wrench + nylon jackets, thread sealant tape, installation guide.

    Fuel Compatibility: Gasoline, E85, alcohol/ethanol (no diesel); avoid nylon lines for E85.

    $183.99
    $183.99
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  • Evil Energy All-in-One LS Fuel Upgrade Kit: Electric Pump, Filter Regulator, PTFE Line & Matching Plug Adapters - EVILENERGYEvil Energy All-in-One LS Fuel Upgrade Kit: Electric Pump, Filter Regulator, PTFE Line & Matching Plug Adapters - EVILENERGY
    Evil Energy All-in-One LS Fuel Upgrade Kit: Electric Pump, Filter Regulator, PTFE Line & Matching Plug Adapters
    Brand EVIL ENERGY Application 1999-2014 Chevrolet V8 4.8L/5.3L/6.0L (LS-based engines) 6AN Fuel Hose PTFE 25FT External Inline Fuel Pump Test Flow:300 LPH (43 PSI&13.5V)Operating Pressure:75PSI Fuel Filter Mounting Bracket ID:50mm (with the insert) Fuel Filter 100 Micron Package 25FT 6AN PTFE Fuel Line*1 LS...
    $247.99
    $247.99
  • [With Quick-Release Connector][Without Quick-Release Connector]
    EVIL ENERGY EFI Returnless Fuel System Kit Fuel Pressure Regulator Adjustable 20-120PSI | 10 micron fuel filter

    Upgrade your vehicle with the EVIL ENERGY EFI Fuel System Kit! This comprehensive kit includes a 10 Micron Filter with Bracket and a powerful 300LPH high flow fuel pump. It also comes with a 10-micron fuel filter and all necessary fittings for easy installation.

    $129.99
    $129.99
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  • EVIL ENERGY EFI Fuel Pressure Regulator Kit Adjustable (20-120PSI) with 6AN CPE/PTFE Fuel Line Kit(black) - EVILENERGYEVIL ENERGY EFI Fuel Pressure Regulator Kit Adjustable (20-120PSI) with 6AN CPE/PTFE Fuel Line Kit(black) - EVILENERGY
    EVIL ENERGY EFI Fuel Pressure Regulator Kit Adjustable (20-120PSI) with 6AN CPE/PTFE Fuel Line Kit(black)

    Core Advantages

    • Universal fit for most EFI systems; compatible with gasoline/E85/alcohol (regulator only).
    • Dual pressure ranges: 20-75psi (standard) / 75-120psi (high-performance).
    • All-in-one kit with gauge, fittings, tools, and sealant.

    Specs & Details

    • Regulator compatibility: Gasoline/E85/alcohol (no diesel); Fuel line: Not E85-compatible.
    • Adjustment: Set screw + interchangeable springs; Allen key included.

    Application & Note

    • Suitable for street cars, high-performance builds, racing vehicles.
    • Professional installation recommended; use sealant tape for NPT port.
    $89.99
    $89.99
    Out Of Stock
    Out Of Stock
  • [PTFE][CPE]
    EVIL ENERGY 12V Inline Electric Fuel Pump Kit, 300LPH High Flow External Fuel Pump with 10FT 6AN Fuel Line & Fittings, 12 Volt Fuel Inline Pump for EFI Systems
    ---!@!start!@!---Specifications---!@!end!@!--- Brand EVIL ENERGY Parameter Test Flow200 LPH (75 PSI & 12V); 255 LPH (43 PSI & 12V); 300 LPH (43 PSI & 13.5V).Operating Pressure:75 PSI.Operating Temperature Range: -68°F-194°F. Length 10FT CPE Kit Includes 10FT 6AN CPE Fuel Line*1External Fuel Pump*1Fuel Filter Bracket*16AN 45°...
    $82.99
    $82.99
    $110.00
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  • [CPE Vacuum Hose Fit] EVIL ENERGY 10-gallon fuel cell kit with aluminum fuel tank, fuel hoses, AN fittings, fuel filter, pressure gauge, and complete installation accessories, free shipping and 180-day return[CPE Fuel Hose Fit] EVIL ENERGY 10-gallon fuel cell kit with aluminum fuel tank, fuel hoses, AN fittings, fuel filter, pressure gauge, and complete installation accessories, free shipping and 180-day return
    EVIL ENERGY 10Gal Fuel Cell Kit - 300LPH Pump, CPE Lines & AN Fittings

    Fuel Cell Gas Tank‎: 10 gallon：Size: 16-inch (L) x 16-inch (W) x 9.05-inch (H), mounting tab measure diameter of 3.46-inch, inlet/outlet fitting: 10 AN

    Fuel Lines: 20FT AN8 CPE black braided hoses: ID: 0.43-inch. OD: 0.64-inch

    5FT 5/32-inch Vacuum Hose： ID:4m.OD:10mm

    External Inline Fuel Pump Electric：300LPH

    Fuel Pressure Regulator：20-120PSI

    Inline Fuel Filter：10&100 Micron

    Fittings: Swivel Hose End: Straight,45°,90°,180°

    Additional Components: Y-Block, AN to ORB adapters, AN to AN Fittings, Bulkhead Fittings, and Hose clamps.

    Application: Compatible with most modified and race-prepped vehicles.Ideal for LS swaps, turbocharged or supercharged engines, and high-flow fuel requirements.

    $649.99
    $649.99
    $731.99
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  • Evilenergy EVIL ENERGY Intank Electric Fuel Pump Kit E2068 E8229 Compatible with Toyota Honda Mazda LexusEvilenergy EVIL ENERGY Intank Electric Fuel Pump Kit E2068 E8229 Compatible with Toyota Honda Mazda Lexus
    EVIL ENERGY Intank Electric Fuel Pump Kit E2068 E8229 Compatible with Toyota Honda Mazda Lexus
    Product details Brand EVIL ENERGY Fit Type Vehicle Specific Fit Vehicle Service Type 1997-2014,Honda Civic Material Metal Item Weight 380 Grams   About this item [Replace OE Part Number]E8335, E8212, E8229, E8254, E8213, E2068. [Fitment] The Electric fuel pump compatible with 1992-2014 Honda Civic,1997-2014...
    $15.99
    $15.99
    $39.19
  • EVIL ENERGY 20-120PSI EFI Fuel System Kit with 300LPH Inline Fuel Pump & 10 Micron Fuel FilterEVIL ENERGY 20-120PSI EFI Fuel System Kit with 300LPH Inline Fuel Pump & 10 Micron Fuel Filter
    EVIL ENERGY 20-120PSI EFI Fuel System Kit with 300LPH Inline Fuel Pump & 10 Micron Fuel Filter
    Brand EVIL ENERGY Fuel Pressure Regulator 20-120PSI External Inline Fuel Pump Test Flow:300 LPH (43 PSI&13.5V)Operating Pressure:75PSI Fuel Filter Mounting Bracket ID:50mm+60mm (with the insert) Fuel Filter 10 Micron Package Fuel Pressure Regulator*1 External Inline Fuel Pump *1 10 Micron Fuel Filter*1 Bracket *2...
    $159.99
    $159.99
  • EVIL ENERGY 6AN CPE Fuel Line Kit with 10 Micron Fuel Filter, Inline Fuel Filter & Bracket Clamp 50MM Universal, 6AN Hose CPE Fitting Kit 10FT - EVILENERGYEVIL ENERGY 6AN CPE Fuel Line Kit with 10 Micron Fuel Filter, Inline Fuel Filter & Bracket Clamp 50MM Universal, 6AN Hose CPE Fitting Kit 10FT - EVILENERGY
    EVIL ENERGY 6AN CPE Fuel Line Kit with 10 Micron Fuel Filter, Inline Fuel Filter & Bracket Clamp 50MM Universal, 6AN Hose CPE Fitting Kit 10FT
    ---!@!start!@!---Specifications---!@!end!@!--- Brand EVIL ENERGY Size 10/30/100 Micron Length 10FT Kit Includes 10FT 6AN CPE Fuel Line*110/30/100 Micron Fuel Filter*1Fuel Filter Bracket*16AN 45° Swivel Hose Ends*26AN 90° Swivel Hose Ends*26AN Straight Swivel Hose Ends*26AN To 10AN ORB Straight Adapters*26AN Hose separator clamp*2 Product Compare Fuel...
    $82.99
    $82.99
    $110.00
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  • EVIL ENERGY 6AN Fuel Line Kit with 10 Micron Fuel Filter, Inline Fuel Filter & Bracket Clamp 50MM Universal, 6AN Hose Braided Fuel Line Fitting Kit PTFE 10FT - EVILENERGYEVIL ENERGY 6AN Fuel Line Kit with 10 Micron Fuel Filter, Inline Fuel Filter & Bracket Clamp 50MM Universal, 6AN Hose Braided Fuel Line Fitting Kit PTFE 10FT
    EVIL ENERGY 6AN Fuel Line Kit with 10 Micron Fuel Filter, Inline Fuel Filter & Bracket Clamp 50MM Universal, 6AN Hose Braided Fuel Line Fitting Kit PTFE 10FT
    ---!@!start!@!---Specifications---!@!end!@!--- Brand EVIL ENERGY Size 10/30/100 Micron Length 10FT Kit Includes 10FT 6AN PTFE Fuel Line*110/30/100 Micron Fuel Filter*1Fuel Filter Bracket*16AN 45° PTFE Hose Ends*26AN 90° PTFE Hose Ends*26AN Straight PTFE Hose Ends*26AN To 10AN ORB Straight Adapters*26AN Hose separator clamp*2 Product Compare Fuel...
    $69.99
    $69.99
    $110.00
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  • Evilenergy EVIL ENERGY Intank Electric Fuel Pump Kit E2157 Compatible with Ford Explorer Escape Lincoln ContinentalEvilenergy EVIL ENERGY Intank Electric Fuel Pump Kit E2157 Compatible with Ford Explorer Escape Lincoln Continental
    EVIL ENERGY Intank Electric Fuel Pump Kit E2157 Compatible with Ford Explorer Escape Lincoln Continental
    Product details Brand EVIL ENERGY Fit Type Vehicle Specific Fit Specification Met OE Lift Type Electric [Replace OE Part Number]E2157. [Fitment] The Electric fuel pump compatible with 1995-2010 Ford Explorer,2001-2004 Ford Escape L4 2.0L,2005-2008 Ford Escape L4 2.3L,2001-2008 Ford Escape V6 3.0L,1998-2003 Ford Escort...
    $18.19
    $18.19
    $35.19
  • 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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Related Articles & Videos

FAQs about EFI systems

What is an EFI fuel pump? How is it different from a regular gasoline pump?

An EFI fuel pump (Electronic Fuel Injection pump) is a high-pressure electric fuel pump specifically designed for modern fuel injection (EFI) systems.

The key difference is pressure:

  • EFI Fuel Pumps: Operate at high pressure (typically 43-58 PSI or more) to ensure fuel atomizes correctly through the injectors.
  • Regular Gasoline Pump (Carburetor Pump): Operates at low pressure (typically 5-9 PSI).

You cannot use a low-pressure carburetor pump for an EFI system, or vice versa. They are not compatible.

Yes, it is mandatory. EFI systems (including all LS engines) rely on high-pressure, stable fuel delivery to operate. If you try to use the original low-pressure carburetor pump, your engine will fail to start or will suffer catastrophic damage from leaning out (fuel starvation) under load. A high-performance electric fuel pump is the foundation of a successful EFI conversion.

LPH stands for 'Liters Per Hour'. It's a flow rating that measures how much fuel the pump can deliver. The LPH you need depends on your engine's horsepower (HP). More horsepower requires more fuel, which means you need a higher LPH rating.

  • General Guideline: For most V8 swaps or applications between 250-500 HP, a 255 LPH pump is a common choice.
  • Higher Performance: For forced induction (turbo/supercharged) or engines exceeding 500 HP, you should consider 300 LPH, 405 LPH, or higher EFI fuel pumps.

This depends on your vehicle and application.

  • In-Tank: Mounted inside the fuel tank. This is standard on modern cars as it runs quieter and the fuel helps cool the pump, extending its life.
  • Inline (External): Mounted outside the tank along the fuel line. This type of electric fuel pump is often easier to install and service, especially on older vehicles that were not designed for an in-tank pump or when using a custom fuel cell.

Many of our high-performance EFI fuel pumps are designed to be compatible with multiple fuel types, including E85. However, E85 is more corrosive than standard gasoline. Always check the specific product description to confirm that the model you are interested in is explicitly 'E85 compatible'.

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