Up forsale is a BRAND NEW Ptuning Fuel Pressure Regulator Plug that comes with thier return fuel system kit. This is used to plug the OEM fuel pressure regulator passage so you can run an aftermarket fuel pressure regulator and fuel return system. $35 Shipped.

 

I know its a long shot, but would you happen to still have your fuel pressure regulator plug. I am trying to get my 07 tC up to 400whp and I cant find anyone still making/selling the fuel return kit.
I was able to piece one together, but the only thing I can't find is the plug and the modified sending unit. I can't get pressure to respond when I adjust on my aftermarket regulator.