JBtuned EG/EK Civic, DC Integra & Del Sol B-Series Fuel Line Tuck Kit with Inline Filter (Level 3)

Product Description

EG / EK Civic, DC Integra & Del Sol B-Series Fuel Line Tuck Kit with Inline Filter (Level 3)

The JBtuned Level 3 B-Series Fuel Line Tuck Kit upgrades the engine-bay fuel system on compatible EG and EK Honda Civics, DC Acura Integras and Honda Del Sols running a B-Series engine.

Level 3 removes the large OEM firewall-mounted fuel filter, replaces it with a compact inline filter and upgrades the engine bay to a clean 6AN feed-and-return layout while retaining the vehicle's factory chassis fuel hard lines.

This is Level 3 in the JBtuned B-Series fuel-system lineup: “I want it cleaner / tucked.”

Level 3 at a Glance

• Fitment: 1992-1995 Honda Civic EG, 1996-2000 Honda Civic EK, 1994-2001 Acura Integra DC and 1993-1997 Honda Del Sol
• Engine: Compatible Honda B-Series engines including B16, B18 and B20 combinations
• System Type: Engine-bay feed-and-return fuel-system upgrade
• OEM Firewall Fuel Filter: Removed
• Replacement Fuel Filter: Compact serviceable inline filter included
• Factory Chassis Fuel Feed: Retained
• Factory Chassis Fuel Return: Retained
• Feed Line: 6AN
• Return Line: 6AN
• Fuel Hose: JBtuned 250 Series rubber-core hose
• Fuel Compatibility: Conventional pump gasoline
• Fuel Rail: Compatible OEM Honda or aftermarket B-Series fuel rail
• Fuel Pressure Regulator: Compatible rail-mounted regulator configuration
• Future Chassis Upgrade: Compatible with the JBtuned Fuel System Extension Kit

What Comes With the Level 3 Kit

• Pre-assembled 6AN engine-bay fuel-feed line assembly
• Pre-assembled 6AN engine-bay fuel-return line assembly
• Compact e85Freaks inline mini fuel filter
• Replaceable 30-micron bronze filter element
• Viton filter seals
• Chassis-line connection components
• Fuel-rail connection components for the selected configuration
• Required connection hardware for the configured engine-bay fuel system

Exact line and connection configurations vary based on the chassis, fuel rail and fuel pressure regulator configuration selected when ordering.

Fuel rail and fuel pressure regulator are not included unless purchased separately.

What Level 3 Changes

Levels 1 and 2 retain the factory firewall-mounted Honda fuel filter. Level 3 removes that filter and replaces the visible engine-bay feed and return plumbing with a cleaner AN-style layout.

The vehicle's original chassis fuel-feed and fuel-return hard lines remain underneath the car. This allows the engine bay to be cleaned up without replacing the complete fuel system from the tank forward.

Modification of the existing chassis fuel-line connection points is required during installation.

Compact Inline Fuel Filter

The Level 3 B-Series Fuel Line Tuck Kit includes a compact e85Freaks inline mini fuel filter in place of the large OEM firewall-mounted filter.

• Filter Element: Replaceable 30-micron bronze element
• Seals: Viton
• Construction: Serviceable inline design

The smaller filter allows the feed-side plumbing to fit naturally into the tucked engine-bay layout while retaining a serviceable fuel filter in the system.

6AN Feed & Return Plumbing

Level 3 uses a 6AN engine-bay fuel feed and 6AN engine-bay return.

The JBtuned line assemblies connect the vehicle's existing chassis fuel plumbing to the B-Series fuel rail and regulator configuration selected when ordering.

JBtuned supplies the configured line assemblies and required connection components so you do not have to determine the individual AN fittings and adapters needed to assemble the engine-bay system yourself.

250 Series Fuel Hose - Pump Gasoline

The Level 3 B-Series Fuel Line Tuck Kit uses JBtuned 250 Series rubber-core fuel hose and is intended for conventional pump-gasoline applications.

250 Series hose is not intended for continuous or full-time E85 use.

If the vehicle will regularly run E85, ethanol-based race fuel or requires broader long-term fuel compatibility, use the JBtuned Level 4 B-Series Full Tucked Fuel System with the appropriate 350 Series PTFE configuration.

Fuel compatibility and flex-fuel engine management are separate considerations. PTFE-compatible plumbing alone does not make the vehicle a flex-fuel system.

Fuel Rail & Regulator Configuration

The B-Series Level 3 Fuel Line Tuck Kit can be configured for the factory Honda B-Series fuel rail or compatible aftermarket B-Series fuel rails.

Select the fuel rail installed on the engine when ordering so JBtuned can configure the appropriate fuel-line connections.

The standard Level 3 system is designed around a rail-mounted fuel pressure regulator. Depending on the selected fuel-rail configuration, the system can be used with the factory Honda B-Series regulator or compatible aftermarket rail-mounted regulators.

The factory Honda regulator uses a smaller return connection than the 6AN return plumbing used by the Level 3 kit, so the regulator-side connection must be configured correctly for the selected setup.

Customers who want to retain the factory-style rail-mounted regulator location while adding adjustability can consider the AEM Honda / Acura Adjustable Fuel Pressure Regulator.

Custom off-rail regulator configurations are not part of the standard Level 3 kit.

Cleaner Tucked Engine-Bay Layout

A fuel tuck system does not mean every fuel hose disappears from view.

The purpose of Level 3 is to reduce unnecessary visual clutter and create a cleaner, more organized fuel-system layout by removing the large OEM firewall filter and replacing the original engine-bay feed and return plumbing.

Final routing depends on the engine, intake manifold, fuel rail, regulator, header, turbocharger and other components installed in the vehicle.

Vehicle & Engine Fitment

• 1992-1995 Honda Civic EG
• 1996-2000 Honda Civic EK
• 1994-2001 Acura Integra DC / DC2
• 1993-1997 Honda Del Sol
• B16 engine combinations
• B18 engine combinations
• B20 engine combinations
• LS/VTEC combinations
• B20/VTEC combinations
• Other compatible Honda B-Series engines

Final fitment depends on the chassis, fuel rail, fuel pressure regulator and surrounding engine-bay components.

If your combination is unusual or your components are not represented in the available options, contact JBtuned before ordering.

Ordering Options

Vehicle / Chassis: Select the Civic, Integra or Del Sol chassis receiving the B-Series Fuel Line Tuck Kit.

Fuel Rail: Select the OEM Honda or aftermarket B-Series fuel rail installed on the engine. Different rails require different connection configurations.

Fuel Pressure Regulator: Select the compatible rail-mounted fuel pressure regulator being used with the system. The selected fuel rail and regulator configuration determines the appropriate return-side connections.

Want to Replace the Factory Chassis Fuel Lines Later?

Level 3 allows you to clean up the engine bay while continuing to use the factory chassis fuel lines.

If you later decide to replace the remaining factory chassis feed and return plumbing, the JBtuned Fuel System Extension Kit continues the existing Level 3 engine-bay system back to the fuel tank.

This allows you to retain the JBtuned engine-bay system you already purchased instead of replacing it when the chassis plumbing is upgraded.

Upgrade the Feed & Return Together

If Level 3 is later upgraded with aftermarket chassis fuel plumbing, the feed and return should be upgraded together.

The Fuel System Extension Kit continues both sides of the existing Level 3 system from the engine bay back to the fuel tank and is the appropriate modular chassis upgrade for this system.

Fuel Pump Hanger & Under-Car Line Support

When Level 3 is expanded with the Fuel System Extension Kit, the new aftermarket feed and return plumbing must connect properly at the fuel tank.

If the factory hanger has not already been configured for the aftermarket AN plumbing and fuel pump being used, see the JBtuned Civic / Integra OEM Fuel Pump Hanger Upgrade Kit.

For compatible EG, EK and DC chassis, JBtuned also offers JBtuned EG EK Civic / DC Integra Fuel & Brake Line Holder Brackets for supporting compatible aftermarket fuel lines underneath the vehicle while allowing the OEM brake hard lines to remain in place.

These brackets are intended for JBtuned and compatible aftermarket fuel lines rather than the original OEM fuel lines.

Need a Complete Flex-Fuel-Sensor Configuration?

If you want to replace the complete chassis fuel plumbing and specifically want the fuel-system layout configured around an ethanol-content sensor, consider the JBtuned B-Series Complete Flex-Fuel System.

The standard B-Series Level 4 Full Tucked Fuel System can also be configured with JBtuned 350 Series PTFE hose for E85 and broader fuel compatibility. The Complete Flex-Fuel version is different because it is specifically arranged around ethanol-content-sensor integration.

You do not need the sensor-specific system simply because the vehicle will run E85.

Not sure which configuration is appropriate? Read our guide to E85, PTFE fuel lines and flex-fuel systems.

JBtuned B-Series Fuel-System Levels

• Level 1 - “I Just Need the Feed Line”: Retains the OEM firewall filter, factory chassis plumbing and existing return-side system while upgrading the filter-to-rail fuel-feed line.
• Level 2 - “I Want Feed & Return”: Retains the OEM firewall filter and factory chassis lines while upgrading both the engine-bay feed and return plumbing.
• Level 3 - “I Want It Cleaner / Tucked”: Retains the factory chassis feed and return lines, removes the OEM firewall filter, adds a compact inline filter and upgrades the engine bay to a 6AN feed-and-return layout. You are here.
• Level 4 - “I Want to Replace Everything”: Replaces the complete factory chassis feed and return plumbing from the fuel tank to the engine and back, with hose series and system configuration selected to match the build.

View Level 1  |  View Level 2  |  View Level 4

Which Level Should I Choose?

Choose Level 1 if you only want to upgrade the filter-to-rail fuel-feed line while retaining the OEM firewall filter and existing return-side system.

Choose Level 2 if you want to upgrade both the engine-bay feed and return plumbing while retaining the OEM firewall filter and factory chassis fuel lines.

Choose Level 3 if you want to remove the large OEM firewall filter, add a compact inline filter and use a cleaner 6AN engine-bay feed-and-return layout while retaining the factory chassis lines.

Choose Level 4 if you want to replace the factory chassis fuel plumbing with a complete aftermarket feed-and-return system from the fuel tank to the engine and back.

Installation Notes

• Level 3 removes the OEM firewall-mounted fuel filter and replaces the engine-bay fuel plumbing while retaining the factory chassis fuel hard lines.
• Modification of the existing chassis fuel-line connection points is required during installation.
• All fuel lines must be securely mounted and routed away from exhaust components, sharp edges, moving parts and areas where excessive heat or abrasion may damage the hose.
• Turbocharged and other high-heat applications require additional attention to fuel-line routing and thermal protection.
• After installation, pressurize the fuel system and carefully inspect every connection for leaks before starting or operating the vehicle.

Professional installation is recommended if you are unfamiliar with AN fuel systems, chassis fuel-line modification or modified Honda fuel systems.

For off-road use only.

Questions About Your B-Series Fuel System?

If you are unsure which JBtuned B-Series fuel-system level is right for your build, contact JBtuned with your vehicle, year, B-Series engine, fuel rail, fuel pressure regulator, fuel being used and future fuel-system goals.