Thing is most people go the other way round, fitting h9s instead of h11s, as the h9 bulbs are a better spec like for like (h11 is 1350 lumens, h9 is 2100). I could fit a nightbreaker h11 and see if it's better than the Philips blue vision h9s I have at the moment but the bulb tech would have to make a big difference to make a h11 better than the h9...
Ahh its that way round is it? I thought the H11 was the better one!
