Radium Engineering Fuel Hanger Plumbing Kit | 2013-2021 Subaru BRZ/Scion FR-S/Toyota 86 (20-0966-03)

The FA20's returnless fuel system meets its return-style replacement, stainless filter edition.

The Radium Engineering Fuel Hanger Plumbing Kit for the BRZ/FR-S/86 (Stainless Filter) converts the OEM returnless system to a traditional return system, including everything required to connect directly to the OEM or aftermarket fuel rails for both single and dual pump configurations. This 20-0306-03 version carries the cleanable stainless filter element, serving alongside the Radium fuel hanger to complete the twins' fuel delivery conversion.

What You'll Feel

• True return-style fuel control replacing the factory returnless compromise
• Stable rail pressure under boost, with the return path bleeding regulation in real time
• Single or dual pump configurations plumbed from one kit
• A cleanable stainless filter element servicing for the life of the car
• Direct connection to OEM or aftermarket rails

Features

• Converts the OEM returnless system to a traditional return system
• Connects directly to OEM or aftermarket fuel rails; single and dual pump support
• Radium fuel filter with stainless element (cleanable, reusable)
• Companion to the Radium BRZ/FR-S/86 fuel hanger (sold separately)
• All fuel types including E85

The Details

Returnless systems regulate at the tank and hope the rail follows, which works until boost, big injectors, and E85 flow demands stretch the assumption, and the return conversion fixes the architecture: pressure regulates at the engine, referenced to manifold pressure, with excess fuel returning to the hanger. The stainless element is the serviceable path, cleaning and reinstalling indefinitely, while the microglass sibling (-05) captures finer particles to the Bosch Motorsports standard and replaces at intervals; E85-heavy builds often favor microglass. Manual transmission fitment considerations apply per Radium's hanger documentation, and flex fuel sensors splice into the return per the standard pattern.

Kit Includes

• Return conversion plumbing: hoses, fittings, and hardware per Radium's kit configuration
• 1x Radium fuel filter with stainless element and mounting
• Fuel hanger and rails NOT included

Applications

• 2013-2021 Subaru BRZ, Scion FR-S, Toyota 86 running the Radium fuel hanger
• OEM or aftermarket rails; single and dual pump configurations