bro do u mean adjustable fuel regulator? u have the adapter? simple, at the end of the fuel rail where the oem regulator is, just unscrew that part, make sure u open ur fuel tank cap first, and let the pressure in the fuel rail go down first, after unscrew, screw the adapter and the hose to where u want to mount ur afpr, then disconnect ur return fuel line and connect it to the afpr. done! haha, honestly, i suck in explaining