I just received my new GT500 dual fuel pumps. Started out a little hesitant. Steeda/Ford racing didn't include wiring diagram/ instructions. Ford racing had installation instructions downloaded and off I went. So far no major problems. Releasing the terminals from connector was a little head scratcher:headscratchut I got it figured out. Getting fuel pumps in tank and cross over tube connection takes a little maneuvering. I hope to fire it up soon.