Chase Bays AN Fuel Line Kit Nissan 240sx w/ RB20

Fuel Lines

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Fuel Rail :
Fuel Pressure Regulator Used :

The Chase Bays AN Fuel Line Kit for RB swapped Nissan R32 and R33 is designed for enthusiasts who want to upgrade / adapt their fuel lines and fuel filter with high end components and stealthy design. This allows you to adapt an aftermarket fuel rail or fuel pressure regulator (FPR) seamlessly. The kit is assembled with all black aluminum A.N. fittings and -6AN stainless steel reinforced hose with high heat nylon sheathing. We use the best components in the industry and we pressure test every line we assemble. We guarantee a leak free start up if this product is installed correctly.

This deletes a portion of the engine bay feed hard line and replaces the filter. In factory form its ugly, bulky, and routed inefficiently. Often in the way of other components. You will cut the feed hard line back about 6" inches to match the return hard line length. This provides a nice tidy look and gives the filter a new mounting location. See photo below for visual reference.

KA24DE and SR20DET Fuel Line Kit Install Layout for S13 S14 and S15

There are many different needs out of fuel systems so we offer 2 main options for our Fuel Line Kits. Keeping the Stock FPR (CB-N-RBF) and integrating an aftermarket external FPR (CB-N-RB-FPR).

Stock FPR kit has 3 hoses. The feed line routes from the hard line to the inline fuel filter. The inline filter mounts directly to the frame rail on an existing threaded bolt hole and supplied rubber insulated clamp. From there it goes directly to the fuel rail inlet using different adapters per your entered specs. The return line is easy enough, attaching from the pressure regulator output to the hardline.

The Aftermarket FPR Kit changes the design to integrate the FPR and adds 3 adapters needed for the FPR to attach the lines to. The aftermarket FPR kit does not work with 2 port type, just the 3 port type. It mounts on the driver side shock tower just in front of the master cylinder (see photo below). It is a "dead head" setup which means the FPR is pre-fuel rail. Many kits have the FPR after the fuel rail which makes for 1 extra fuel line and more engine bay clutter. Chase Bays specializes in fixing clutter. The dead head setup is what the 3 port FPR’s were designed for and is common practice in the motorsport world.

AN Fuel Line Pressure Regulator Kit for KA24DE and SR20DET Nissan S13 S14 and S15

AN Fuel Line Pressure Regulator Kit for KA24DE and SR20DET Nissan S13 S14 and S15

Most Chase Bays products are built to order and require 5-7 business days to complete. Please contact us directly if you need your item sooner.


Any returns for an exchange or refund will be allowed within 30 days from the receipt of your order and must be authorized prior to shipping with an RMA Number (Return Merchandise Authorization). To receive your return instructions and RMA# please use our online form under Returns and Exchanges! Once you receive your return instructions please ship out the item at your earliest convenience and provide the tracking number to your customer service rep. The customer will be responsible for all shipping fees. Before shipping your product back please make sure you package it up exactly how you received it and in all of its original packaging. All items must be in brand new and resalable condition. Once the item is received it will be inspected and a credit will be issued accordingly. All returns are subject to a 15% restocking fee. Any returns received without an RMA# will be charged a restocking fee and any shipping fees associated with the return. An item that does not ship directly from IIR's warehouse is considered a "special order" item and no returns will be authorized.

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