In the old’n days you would just route a couple spark plugs back to your exhaust pipe, and because the car ran so rich (sloppy) it would ignite the unspent fuel, and shoot flames. Oh wait… that is exactly what this kit is doing. Folks, I would normally reward such slick marketing… but not when they are charging $199 for a dual exhaust kit that you can do on your own for about $30. Either way… don’t do this to your car.