Radium Fuel Hanger Plumbing Kit | 2010-2015 Chevrolet Camaro LS3 LS7 L99 (20-1326-03 / 20-1326-05)

A fifth gen Camaro will feed an LS3, LS7, or L99 all day, right up until the factory fuel line becomes the ceiling.

The Radium Engineering fuel hanger plumbing kit for the 2010-2015 Chevrolet Camaro spans everything between the Radium GM fuel pump hanger and the fuel rails: dual 6AN PTFE feed lines that route from the fuel hat to the filter where a single 8AN will not clear the tank-to-unibody gap, a high flow fuel filter with a built-in check valve on a Camaro-specific mount, a rail-mounted fuel pressure regulator with gauge, and the 8AN PTFE line feeding the rails up front. The back half of the OEM feed line stays in service so the factory fuel pressure sensor keeps talking to the ECU, the remainder is repurposed as the 6AN return, and a dedicated 6AN PTFE line ties the FPR return port back to the OEM hard line. Both versions are identical except the filter media.

Choose Your Kit

• Stainless Filter (20-1326-03): 10 micron stainless steel element, cleanable and reusable
• Microglass Filter (20-1326-05): 6 micron microglass element for the finest filtration

What You'll Feel

• One engineered plumbing solution from tank to rails instead of piecing together hose, fittings, filter, and regulator separately
• Stable rail pressure from true return-style regulation, replacing the in-tank OEM regulator the hanger deletes
• Injector protection restored with real post-pump filtration
• Pressure that holds after shutdown thanks to the check valve built into the filter, which matters for hot restarts
• Factory ECU diagnostics intact because the OEM pressure sensor section of the feed line is retained

Features

• Dual 6AN PTFE feed lines from fuel hat to filter, sized for the tank-to-unibody gap
• High flow fuel filter with built-in check valve; choice of 10 micron stainless or 6 micron microglass element
• Camaro-specific fuel filter mount, no permanent vehicle modifications
• 4 green anodized hose retaining adapters with clamps
• Thermal insulating sleeve plus a billet aluminum clamp securing the 8AN PTFE hose away from the header
• 8AN PTFE line from the fuel filter feeding the RH fuel rail; FPR and gauge mounting directly to the LH fuel rail
• 6AN PTFE line connecting the FPR return port to the OEM fuel feed hard line

The Details

This kit is the middle third of a three-part system: the Radium GM fuel pump hanger (20-1320 or 20-1322) lives in the tank, this plumbing kit spans the chassis, and Radium fuel rails with their rail plumbing kits receive it all at the engine; the rails and rail plumbing kits are required and sold separately. Compared to the CTS-V version of this kit, the Camaro routing feeds the RH rail and regulates on the LH rail, and the return runs through a provided 6AN PTFE line to the OEM hard line rather than repurposing the full factory line. Version choice is filter media only: stainless cleans and reuses, microglass filters finer and gets replaced. Applies to LS3, LS7, and L99 fifth gen cars.

Kit Includes

• Dual 6AN PTFE feed lines, 8AN PTFE rail feed line, and 6AN PTFE FPR return line
• Radium high flow fuel filter with check valve, in the selected element
• Fuel pressure regulator and pressure gauge
• Camaro-specific filter mount, 4 green anodized hose retaining adapters with clamps, billet clamp, thermal sleeve, and hardware
• NOT included: the fuel pump hanger (20-1320 / 20-1322), fuel pumps, and the required Radium fuel rails and fuel rail plumbing kits

Applications

• 2010-2015 Chevrolet Camaro LS3 / LS7 / L99 with the Radium GM fuel pump hanger and Radium fuel rails

Important Notes

• Radium Engineering fuel rails and fuel rail plumbing kits are required for this kit and are sold separately
• Designed around the Radium GM fuel pump hanger; not intended for the stock in-tank module
• For LS3, LS7, and L99 engines; supercharged LSA ZL1 cars use the CTS-V style rail hardware and are not listed by Radium for this kit