Radium Engineering Fuel Rail Plumbing Kit for 1999-2005 Mazda Miata/MX-5 (Part #20-0423)

Precision Fuel Delivery. Effortless Installation. Race-Ready Results.

Upgrade your fuel system the right way with the Radium Engineering Fuel Rail Plumbing Kit, designed specifically for the 1999-2005 Mazda Miata/MX-5. When paired with the Radium Engineering fuel rail, this kit delivers a seamless, bolt-on replacement for the factory setup, ensuring optimal performance and reliability in high-performance applications.

Engineered for racers and enthusiasts who demand nothing but the best, this kit retains the OEM fuel pressure regulator while replacing the restrictive factory feed and return hoses with high-quality components built to handle the demands of modern performance.

Key Features & Benefits:

1. Bolt-On Plug-and-Play Installation:

  • Specifically designed to work with the Radium Engineering fuel rail for a hassle-free, direct replacement of the OEM fuel system.
  • No custom fabrication required—install it and hit the track.

2. Retains OEM Fuel Pressure Regulator:

  • Maintains factory fuel pressure settings for smooth and reliable operation.
  • Simplifies installation without sacrificing performance.

3. High-Quality Feed and Return Hoses:

  • Replaces factory hoses with premium lines designed for increased durability and improved fuel flow.
  • Built to withstand the demands of high-performance and track use.

4. Race-Ready Construction:

  • Engineered with precision for reliable performance under extreme conditions.
  • Provides consistent and efficient fuel delivery, ensuring your engine gets exactly what it needs, even at full throttle.

5. Ideal for Performance Builds:

  • Perfect for naturally aspirated, turbocharged, or supercharged Miatas.
  • Ensures compatibility and performance with upgraded fuel systems.

Why This Kit is Essential:

The Radium Engineering Fuel Rail Plumbing Kit transforms your fuel system into a performance powerhouse. By retaining the OEM fuel pressure regulator and upgrading critical components, this kit ensures you’ll get the most out of your Radium Engineering fuel rail and your Miata. Whether you’re setting records on the track or maximizing your weekend drives, this is the upgrade that delivers race-winning results.

Don’t Settle for Stock—Upgrade Now!

Equip your 1999-2005 Mazda Miata/MX-5 with the Radium Engineering Fuel Rail Plumbing Kit and experience the difference in performance and reliability. Click “Add to Cart” today and get ready to dominate with Radium Engineering!

Fuel smarter. Race harder. Win with Radium Engineering.



This Part Fits:

Year Make Model Submodel
1999 Mazda Miata 10th Anniversary
1999-2005 Mazda Miata Base
2000-2005 Mazda Miata LS
2004-2005 Mazda Miata Mazdaspeed
2000-2003 Mazda Miata SE
2003 Mazda Miata Shinsen

Shipping Policies

Free Shipping on all orders over $56.

For orders under $56, we offer ground shipping for only $9.99.

Need your parts faster? Flat-rate expedited shipping options are available.

Standard delivery in 3-5 business days or less.

For in-stock items, our free ground shipping reaches any of the 48 contiguous U.S. states in 5 business days or less.

International Shipments

Garage 56 Engineering provides the best service and quality parts to customers all over the globe every day. We understand that purchasing parts internationally can be stressful and would like you to know we are committed to helping at every step of the way.

Transit times listed on the website are estimates and will vary depending on your location as well as the amount of time it will take your government to process the order through customs. In most cases, orders take around a week to arrive but can be closer to two to three weeks to some countries.

You may be charged a duty (tax) on your order. We do not handle this tax and your local customs agency will charge you the correct amount per your local laws. It is your responsibility to review and understand these taxes when ordering.

Please note that our fitment data and vehicle selector is for United States of America Market cars only. If you are searching for parts for an international car please search for exact part numbers.


Return Policies

We have a 365-day return policy, which means you have 1 year after receiving your item to request a return. 

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at info@garage-56.com. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return question at info@garage-56.com.

Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.

Unfortunately, we cannot accept returns on sale items or gift cards.

Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.

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