Wow thanks guys for all the response, i have a 2wd crew cab, i live in texas and do allot of rural night driving to give you an idea bought my truck in jan, i already have 12k on it and i would say 8k is night driving on 2 lane roads with no other traffic, i think the CEl was the gas cap it went away, but headlights are very important and the stoic ones suck they throw 50ft doing 70 mph on a night road i need at least a 100ft with a wide spread, there is a different i have fog lights, a driving light throws either far or wide to cover areas that headlights do not, i don't want to drive only with them i want to use them but they to are kinda useless so if i could convert them that would be a help. how far is the throw with the hid, i now understand the color difference thanks again goodolsen and quartz, also thanks for the heads up on the code reader and yes those bold are cheap. so any idea on the throw of the lights, or am i stuck trying to level the truck which i don't want to do for when i pull my boat, i don't want to blind my other 2 lane drivers with my low beams when I'm towing. other then the headlights the truck is awesome.