all that is, is a voltage controller for the fuel pump.

You can hardwire the fuel pump and accomplish the same thing for the cost of some wire and a relay.


The stock fuel system is the problem, you need to ditch the returnless (yes, thats what it is since the regulator is before the rail) and convert it to traditonal return type.

Anyone that modifies a modern car does this for power gains and reliability, not to mention a returnless fuel system is flow limited to around 375ish horsepower.