Temporarily out of stock. Due to supply chain issues we are out of a few components for this kit. We hope to have them in house by November 1, 2021. We apologize for the inconvenience!




iWire’s Fuel Pump Controller Hardwire Kit directs power to the fuel pump straight from the battery which creates the necessary flow from your upgraded fuel pump to feed big injectors. We also retain the very important safety shutoff present in the stock fuel system as well as the low, medium, and high settings utilized by the factory controller. We combine big power with safety to give you the ultimate Plug and Play result. Simply run the wires as described in our directions, mount the module, and take it to the dyno for your tune.


Click here to watch our FPC Hardwire Install Video!


Normally a Radium Hanger install would involve cutting the original fuel tank hanger connector for the fuel level and fuel temp wiring. Our kit inlucdes a jumper for this so no cutting of the original harness required because a jumper from the stock fuel tank assembly connector is included. Just plug it into the factory fuel tank harness and bolt the ring terminals up to the Radium hanger.


While the iWire Fuel Pump Hardwire Kit can handle any pump size, we recommend using a fuel pump no larger than 450 LPH. Larger (IE 500 LPH or higher) single pump setups can cause issues with the stock fuel pump controller. Click here to learn more. If you are running a 500+ LPH pump, we recommend adding on our upgraded Fuel Pump Controller that can handle the extra power.


Standard kit does not work with 2015+ WRX and 2014+ Forester due to Fuel Pump Controller Design. As of now there are no known solutions to hardwire and leave the 33/66/99 settings.


Product Works With

2002 - 2014 WRX

2004 - 2020 STi

2004 - 2013 FXT

2005 - 2012 Legacy GT/Outback XT

2004 - 2006 Baja XT



Installation or use of any iWire product by a user is at the user’s own risk. iWire accepts no liability for any damage to the car or individual. Modifying the fuel tank can be dangerous. iWire recommends that all products, especially those regarding the fuel system, be installed by a licensed professional. By purchasing this product, you accept these terms of sale.

Fuel Pump Controller Hardwire Kit for Radium Hangers - Single Pump