Where Should a 100-Micron Fuel Filter Be Installed?
In many custom fuel systems, a coarse filter is installed between the fuel tank and an external fuel pump.
A typical arrangement may look like this:

Actual filtration requirements and filter locations depend on the fuel pump and fuel system design.
A 100-micron element is generally too coarse to serve as the only filter protecting modern fuel injectors. A finer downstream filter may also be necessary.
For more information about choosing a compatible fuel pump, read our 255LPH vs 340LPH vs 450LPH vs 525LPH Fuel Pump Comparison.
Includes 6AN, 8AN, and 10AN Fuel Line Adapters
One of the biggest advantages of this EVIL ENERGY inline filter is the included selection of AN adapters.
Rather than purchasing a separate filter for each fuel line size, builders can configure the filter using compatible fittings for their plumbing requirements.
| Adapter Size | Typical Custom Application |
|---|---|
| 6AN | Compact aftermarket fuel systems and return lines |
| 8AN | Performance fuel supply lines |
| 10AN | Larger custom fuel plumbing and high-flow systems |
The correct AN size depends on fuel demand, pump specifications, line length, pressure loss, and the complete fuel system configuration.
Durable Aluminum Housing and Stainless Steel Filter Element
The EVIL ENERGY inline fuel filter uses an aluminum alloy housing with a removable stainless steel filtration element.
The stainless steel element is designed to withstand repeated inspection and cleaning when serviced according to the manufacturer’s instructions.
The removable end caps provide access to the internal filter element, making routine maintenance more convenient than with many disposable inline filters.
O-ring seals help prevent leakage at the housing and fitting connections.
Before reassembly, inspect the O-rings for cracking, flattening, swelling, or other damage.
Universal 50MM Mounting Bracket
The included 50mm mounting clamp helps secure the filter housing to a suitable mounting surface.
Proper mounting is especially important in performance vehicles where engine vibration, suspension movement, and chassis flex can place additional stress on fuel hoses.
The bracket helps keep the filter positioned securely while reducing unnecessary movement at the fittings.
Install the filter away from excessive exhaust heat, moving suspension components, and areas exposed to impact or abrasion.
Gasoline and Diesel Compatibility – Not for E85
The EVIL ENERGY 100-micron inline fuel filter is advertised for use with compatible gasoline and diesel fuel systems.
However, the manufacturer specifically states that this product is not suitable for E85.
Do not install this filter in a dedicated E85 fuel system or assume it is compatible with high-ethanol fuel blends simply because it uses an aluminum housing and stainless steel filter element.
The compatibility of the complete filter depends on the housing, O-rings, fittings, and internal components.
For readers considering an ethanol conversion, our How to Convert to E85 – Upgrading Fuel Lines guide explains why fuel system material compatibility matters.
EVIL ENERGY 100 Micron Inline Fuel Filter Specifications
| Specification | Details |
|---|---|
| Brand | EVIL ENERGY |
| Product type | Inline Fuel Filter |
| Filtration rating | 100 micron |
| Filter element | Stainless steel |
| Housing material | Aluminum alloy |
| Connection adapters | 6AN, 8AN, 10AN |
| Mounting bracket | 50mm clamp |
| Housing design | Removable/serviceable |
| Sealing | O-ring seals |
| Fuel compatibility | Gasoline and diesel, as advertised |
| E85 compatibility | Not compatible |
| Installation | Universal custom fuel system |
| Flow direction | Directional, marked on housing |
| Primary use | Coarse fuel filtration |
Maximum operating pressure, fuel flow rating, exact filtration efficiency, and replacement element part number were not provided. Confirm these specifications with EVIL ENERGY before selecting the filter for a particular pump or fuel system.
What Vehicles Does This EVIL ENERGY Fuel Filter Fit?
This is a universal aftermarket inline fuel filter rather than a direct-fit replacement for a specific vehicle.
It can be used in compatible custom fuel systems equipped with appropriate AN plumbing.
| Vehicle / Engine Platform | Potential Application |
|---|---|
| Chevrolet Camaro / Corvette LS | External fuel pump pre-filtration |
| Ford Mustang 5.0L | Custom gasoline fuel system |
| Honda Civic / Acura Integra | Aftermarket fuel pump installations |
| Nissan 240SX SR20DET / KA24 | Custom braided fuel plumbing |
| Toyota Supra 2JZ | Modified gasoline fuel delivery |
| Lexus IS300 2JZ-GE | External fuel system modifications |
| Mitsubishi Lancer Evolution | Custom fuel system filtration |
| Subaru WRX / STI | Aftermarket fuel plumbing |
| Custom diesel builds | Compatible diesel fuel line filtration |
Fitment note: The filter is not a direct replacement for factory fuel filters. Installation requires compatible AN fuel lines, suitable mounting space, and verification of fuel pump filtration requirements.
How to Install the EVIL ENERGY 100 Micron Fuel Filter
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Relieve fuel system pressure and disconnect the battery before beginning work.
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Identify the correct filter location based on the fuel pump manufacturer’s recommendations.
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Select the appropriate 6AN, 8AN, or 10AN adapters.
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Verify that the filter element is correctly seated inside the housing.
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Confirm that the closed end of the filter element is positioned against the internal spring, as specified by EVIL ENERGY.
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Install the filter so fuel flows in the direction indicated by the arrow on the housing, from the spring end toward the opposite end.
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Secure the filter using the included 50mm mounting bracket.
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Connect compatible fuel hoses and fittings.
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Prime the fuel system and inspect every connection for leaks.
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Verify fuel pressure and check for restrictions before operating the engine under load.
Important: Incorrect filter element orientation or reversed fuel flow can affect filtration performance. Always follow the supplied installation instructions.
How Often Should You Clean a 100-Micron Fuel Filter?
Service intervals depend on fuel quality, tank condition, driving environment, and the amount of contamination present.
Newly fabricated fuel systems and older fuel tanks may release debris during initial operation, making early filter inspections particularly useful.
To service the filter, safely relieve fuel pressure, remove the filter element, and clean it using a method approved by the manufacturer.
Replace damaged elements and seals rather than attempting to reuse compromised components.
Buy the EVIL ENERGY 100 Micron Inline Fuel Filter at Pro Street Online
Protect your custom gasoline or diesel fuel system with the EVIL ENERGY 100 Micron Inline Fuel Filter with 6AN, 8AN, and 10AN Adapters.
Featuring a reusable stainless steel filter element, aluminum housing, interchangeable AN fittings, O-ring seals, and a 50mm mounting bracket, this filter offers a practical solution for compatible aftermarket fuel system installations.
Shop fuel filters, AN fittings, braided fuel lines, and performance fuel system components at Pro Street Online.






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