This sizzling product can make up to 20 feet of flames shoot from your exhaust tips with a touch of a button! The kitâ€™s main control box can control 2 spark plugs for optimal performance on dual-exhaust vehicles. Easy installation and detailed instructions ensure compatibility with most exhaust systems. The kit includes a control box, activation button, wire loom, and wiring diagram. The kit does not include the 2 coils and 2 spark plugs needed for complete installation.