Before locating a mounting spot for the box, find a suitable ground for the Plasma Booster. We used the passenger-side alternator bolt for our installation. This bolt provided the most logical mounting place for the ground. If the ground is not properly attached, the Plasma Booster won't work. If you want to do your own dyno testing, install the Plasma Booster but leave the ground disconnected. That way you can run the car, and when you're ready to test the Plasma Booster, simply attach the ground and re-test.