Here I have a proxes tuning Gto single fuel pump. It is brand new and never been used. I’m including the sending unit top hat, which is not included when you purchase this from proxes tuning. 
I’m asking 725 since his brand new and if you wanna buy it from the direct manufacturer, it takes about three weeks to order from him so with me, you don’t have to wait. I have it in stock ready to go.
DW400 drop in pump and regulator assembly for the Pontiac GTO.
This is a complete plug and play system that includes a filter/regulator assembly set at 4 bar of fuel pressure.
You may also chose the pump only option, which will require the end user to install a return or feed line, and regulate fuel pressure externally.
Be aware that this pump does draw more current than factory, and it is highly recommended to upgrade the stock wiring in the vehicle. Unfortunately we do not offer a complete wiring upgrade at this time.