These relay bypasses are great for electrical diagnostics, they help save a good amount of time in terms of narrowing down what could be wrong on a car. A must have for any mechanic's toolbox.
Installation is pretty simple: just plug in the place of the fuel pump relay and direct control over the fuel pump circuit is realized in most domestic, Japanese, Korean and German applications. They can be mounted horizontally or vertically and stainless steel mounting screws are attached with panel, which can make the switch panel installed firmly based on your needs.