Took less than a half hour to install, and most of that time was spent unplugging the starter/ignition and finding a good ground. Car went from rarely starting unassisted to first turn every time. Only issue is that the wires are a bit short and a different color than the directions mention, but that's nothing a little ingenuity and common sense couldn't solve.
This is amazing part, it is really simple and easy to install, my car it will struggle to start all you heard was click, click, click. But after install this part it start to the first try.