Product Description
JBtuned B-Series Fuel Line Tuck Kit with Inline Filter
The JBtuned B-Series Fuel Line Tuck Kit is designed for Honda Civic, Acura Integra, and Del Sol applications running a Honda B-Series engine.
This kit upgrades the engine-bay fuel plumbing to a clean 6AN feed and return configuration while retaining the factory Honda fuel hard lines underneath the vehicle.
The system includes a complete engine-bay feed line with inline fuel filter, a return line, proper hardline-to-AN connections, and the components required to connect the system to your selected fuel-rail configuration.
The result is a cleaner, more purpose-built engine bay with AN-style fuel plumbing without requiring replacement of the complete factory fuel system.
Clean Engine-Bay Fuel-System Upgrade
The goal of this kit is to replace the factory engine-bay fuel-line routing with a cleaner and tucked style AN fuel-system layout.
The factory chassis hard lines remain in place underneath the vehicle, while the visible engine-bay portions of the feed and return system are replaced with JBtuned 6AN fuel-line assemblies.
This makes the kit a great option for:
- Wire-tucked engine bays
- Shaved engine bays
- Clean street builds
- B-Series swaps
- Naturally aspirated B-Series builds
- Modified B-Series vehicles retaining the factory chassis fuel lines
- Customers upgrading to cleaner AN-style engine-bay fuel plumbing
Vehicle & Engine Compatibility
Designed for B-Series-powered applications including:
- 1992-1995 Honda Civic EG
- 1996-2000 Honda Civic EK
- 1994-2001 Acura Integra DC
- 1992-1998 Honda Del Sol with a compatible B-Series fuel-system configuration
Common engine combinations include:
- B16
- B18
- B20
- LS/VTEC
- B20/VTEC
- Other compatible Honda B-Series combinations
If you have an unusual chassis, fuel rail, or regulator combination, contact JBtuned before ordering.
Fuel Compatibility
This version of the JBtuned fuel-line tuck kit uses standard 250-series rubber-core braided fuel hose.
This kit is intended for conventional pump-gasoline applications.
It is not intended to convert the vehicle to E85 or other high-ethanol fuels.
The included inline fuel filter uses ethanol-compatible components, but the complete fuel-line system should only be considered compatible with the fuel types supported by all of the components in the vehicle.
Planning a Turbo, High-Horsepower, E85, or Flex-Fuel Build?
This fuel-line tuck kit retains the factory Honda fuel hard lines underneath the vehicle. Because those factory lines remain part of the system, the vehicle's overall fuel-system capacity is still influenced by the OEM chassis plumbing.
If your build is being designed around increased fuel demand, turbocharging, higher horsepower, E85, or flex-fuel capability, one of our complete fuel-system replacements may be a better fit.
Both of the JBtuned complete B-Series fuel systems below are designed for performance applications. Neither system requires you to run E85 — PTFE configurations can also be used with conventional pump gasoline.
B-Series Complete Flex-Fuel System
The JBtuned B-Series Complete Flex-Fuel System is a full PTFE feed-and-return fuel system designed around the additional plumbing and layout required to integrate a flex-fuel sensor.
This system is well suited for turbocharged and higher-horsepower builds whether you plan to run pump gasoline, E85, or a flex-fuel calibration.
Choose this version when you specifically want the fuel system configured around a flex-fuel sensor installation.
View the JBtuned B-Series Complete Flex-Fuel System
B-Series Full Tucked Fuel System
The JBtuned B-Series Full Tucked Fuel System also replaces the factory chassis fuel plumbing and is designed for turbocharged, higher-horsepower, and performance-oriented builds.
This version does not use the flex-fuel-sensor-specific layout of the Complete Flex-Fuel System.
It is available with different hose configurations depending on the fuel you plan to use. For an E85 or ethanol-based setup, select the PTFE hose option. The PTFE configuration can also be used with conventional pump gasoline.
Choose this system when you want a complete performance fuel-system replacement but do not need the system specifically configured around a flex-fuel sensor.
View the JBtuned B-Series Full Tucked Fuel System
Fuel-Line Configuration
Feed Line:
6AN braided fuel hose with inline fuel filter.
Return Line:
6AN braided fuel hose.
Hose Type:
250-series rubber-core braided fuel hose.
Factory Hard Lines:
The factory fuel hard lines underneath the vehicle are retained and adapted to the new AN fuel-line assemblies in the engine bay.
Proper Hardline-to-AN Connections
A major part of the JBtuned design is the proper conversion of the factory Honda fuel hard lines to AN connections.
The kit includes dedicated hardline-to-AN adapters for both the fuel feed and return, creating a clean connection between the factory chassis plumbing and the new 6AN engine-bay fuel lines.
The adapters, fittings, and line assemblies are selected and configured as part of the complete JBtuned kit so you do not have to determine and piece together the individual components yourself.
Included Inline Fuel Filter
The system includes an e85Freaks mini inline fuel filter.
The filter features:
- Replaceable 30-micron bronze filter element
- Viton seals
- Compact inline design
- Serviceable filter element
Its compact design allows the fuel filter to be incorporated into the tucked fuel-line layout without using the larger factory engine-bay filter arrangement.
JBtuned Engineered Fuel-Line Configuration
JBtuned developed the fuel-line routing and component configuration specifically for these Honda applications.
The goal is to provide a clean tucked appearance, proper fitment, and a well-organized fuel-flow path without requiring the customer to determine the correct combination of individual AN components.
The supplied fuel-line assemblies and connection components are configured around the vehicle and fuel-rail options selected when ordering.
Fuel Rail Options
This kit can be configured for either an aftermarket B-Series fuel rail or the factory Honda B-Series fuel rail.
Select the fuel rail installed on your vehicle when ordering so JBtuned can provide the appropriate connection configuration.
Aftermarket Fuel Rail & Regulator
An aftermarket B-Series fuel rail with a compatible rail-mounted adjustable fuel pressure regulator provides the cleanest and most straightforward configuration.
The JBtuned fuel-line system is configured around the rail selected when ordering so the supplied feed and return assemblies match the intended setup.
OEM Fuel Rail & Fuel Pressure Regulator
The factory Honda fuel rail can be used with this kit and remains a popular option.
The OEM fuel rail itself does not create a problem with the JBtuned fuel-line system.
The main consideration is the factory fuel pressure regulator.
The OEM regulator uses a relatively small return-line barb compared with the 6AN return hose supplied with the kit.
Because of this size difference, the return-line connection requires careful clamping to achieve a proper seal when using the factory regulator.
Always inspect and verify this connection for leaks before operating the vehicle.
Customers wanting to keep their OEM fuel rail but wanting a cleaner AN-style regulator should consider the AEM Honda / Acura Adjustable Fuel Pressure Regulator .
What Comes With the Kit
- Complete 6AN fuel-feed line assembly
- Complete 6AN fuel-return line assembly
- e85Freaks mini inline fuel filter
- Replaceable 30-micron bronze filter element
- Fuel-rail connection components for the selected configuration
- Hardline-to-AN adapters for the factory feed and return lines
- Required AN fittings and connection hardware
Exact fittings and line configuration vary depending on the vehicle, fuel rail, and regulator setup selected when ordering.
Fuel pressure regulator is not included.
Fuel rail is not included.
Ordering Options Explained
Vehicle
Select the chassis receiving the fuel-line tuck kit.
The vehicle selection allows us to provide the appropriate line configuration for the application.
Fuel Rail
Select the fuel rail currently installed on your B-Series engine.
Factory and aftermarket fuel rails can require different connections, so this selection allows JBtuned to configure the kit appropriately.
If your fuel rail is not listed or you are unsure which selection applies to your setup, contact JBtuned before ordering.
Fuel Pressure Regulator
This fuel-line tuck kit is designed around a rail-mounted fuel pressure regulator.
The system can be configured for an aftermarket rail-mounted regulator or the factory Honda fuel pressure regulator depending on your selected fuel-rail setup.
Custom off-rail fuel pressure regulator configurations are not offered with this kit.
Installation Overview
This is a DIY fuel-line conversion that retains the factory hard lines underneath the vehicle and replaces the engine-bay portions with the supplied JBtuned 6AN fuel-line assemblies.
Installation requires modification and proper preparation of the factory fuel hard lines so the supplied hardline-to-AN adapters can be installed.
Because vehicle condition and individual engine-bay configurations can vary, refer to the product photos and supplied information when planning your installation.
If you are not comfortable modifying factory fuel lines or working with AN fuel-system components, professional installation is recommended.
Important Installation Information
- Tools required for installation are not included.
- Modification of the factory engine-bay fuel hard lines is required.
- Fuel connections must be properly installed and inspected before operating the vehicle.
- Keep fuel lines properly routed away from exhaust components and other high-temperature areas.
- Verify the complete fuel system for leaks after installation.
Every modified vehicle can have differences in engine, fuel rail, regulator, intake, turbocharger, and other component placement.
If you are unsure whether this kit will work with your combination, contact JBtuned before ordering.
JBtuned B-Series Fuel Line Tuck Kit Video
The following video provides a visual reference for the JBtuned B-Series Fuel Line Tuck Kit and the clean engine-bay appearance the system was designed to achieve.
Questions About Your Setup?
If you are unsure whether this kit will work with your chassis, fuel rail, or fuel pressure regulator, contact JBtuned before ordering.
Send us your vehicle, year, engine, fuel rail, and fuel pressure regulator, and we can help determine the correct configuration.
Professional installation recommended.
For off-road use only.
Product Videos
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Product Reviews
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Fuel line tuck for 1994-01 integra B series
Fuel filter tuck came well packaged and works great on the car im building. Will buy from JBTuned again and definitely recommend!
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Best fuel line tuck kIt
Fast shipping, good price and excellent quality!
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Eg Tucked fuel line
Purchased this item and received it fast quality is great installed with no problems, great product and great service