Using the stock wiring and terminals with high wattage bulb, this is very dangerous. The plastic terminals may melt due to the heat created by the almost 3x more wattage. The heat will be triple but the light output is not triple. You need to convert to ceramic terminals. The wiring must also be upgraded to thicker guage, the tiny stock wires is going to overheat and will melt the wire casing, this then can get in contact with your chassis and will most likely short out not just the headlight but your entire electrical system.