@limraj I have changed stock osram bilux to xtremevision plus in my punto. It is H4 single bulb in a punto evo but in linea it is H7 for high and H1 for low if I'm right. Just go ahead with your plan to purchase xtremevision plus. I did two full night drives with new bulbs during my recent mumbai trip. It is far superior and throws better than stock bulbs. Do check retailer in your area from philips website for buying at cheaper price than online. I bought @ Rs.600/piece against online price of Rs.800 a piece.