The Radium fuel pump hanger allows the use of 1 or 2 aftermarket pumps. This NOT a fuel surge tank. For information on what a fuel surge tank is and how it functions,

• 93-07 Subaru Impreza (including WRX & STi)
• 97-08 Subaru Forester (All)
• 89-98 Subaru Liberty (All)
• 94-99 Subaru Outback (All)
• 05-06 Saab 9-2X

The machined assembly mounts in the factory fuel tank using the OEM gasket and hardware. The fuel level sender and temperature sensors are retained, as shown below.

The pumps merge into a single port outlet with 8AN ORB threads. The crossover and return uses 6AN ORB threaded ports. To simplify plumbing, the kit includes OEM hose adapter fittings for all model years listed. Shown below is the configuration for older models which use all barbs.

Shown below is for mid model years which use a SAE quick disconnect fuel feed. There is also a return line SAE quick disconnect fitting included for newer models. Lastly, -6AN male fittings are included for those that use aftermarket feed and return hoses.  

Wire connections are done with specially designed stainless steel studs. As shown, all in-tank wiring is high quality PTFE insulated for use in gasoline and ethanol. Stainless steel crimp-on ring terminals and heat shrink are provided for external wiring connections.

The kit includes a Radium  with interchangeable orifices that is optimized for high flow pump(s).

The kit also includes a streamlined anodized aluminum collector box, shown below. 

Unlike the 2001-2007 WRX STi OEM variation, the Radium Engineering collector box has been optimized to work in ALL gas tanks. Shown below is the smallest OEM gas tank baffle found in the model list above. It improves the fuel supply around the pump(s) inlet. There is a 1" check valve incorporated on the front side of the tank that serves as a trap door keeping the pump(s) supplied with fuel during aggressive driving. Furthermore, all returning fuel from the pressure regulator return and the crossover hose enter the collector box keeping it full. The OEM fuel level and fuel temperature sensors secure to the mounting bracket.

Single pump applications can reuse the OEM fuel pump controller, but it is recommended to upgrade the wiring as high flow fuel pumps draw additional current requiring larger gauge wire. Fuel pump wiring kits can be purchased separately. Select qty1 for single pump applications and qty2 for dual pump applications.

Features:

• Anodized Aluminum Laser Etched Plate
• Anodized Aluminum Collector Box and Check Valve
• Anodized Aluminum Venturi Jet Pump with Extra Orifice
• Anodized Aluminum Fittings for All Model Years
• Anodized Aluminum Dual Pump Mounts
• PTFE Wire with Stainless Steel Terminals
• Submersible Rubber Fuel Hose 
• Stainless Steel Hardware and Clamps