hello mate i have got 130/90s in mine and not uprated the loom been alright for several years, no melted wires yet, lol. higher wattage bulbs are illeagle on cars after 1987ish but whos going to stop you and take you bulbs out to check. the wattage. i had a 1990 xr4x4 with 860 watts of light on the front people used to wake up and get out of bed when i turned them on and never got questioned by the plod