Re: 147 HID (xenon) upgrade...
There is room for improvement in upgrading halogen headlights definitely. And those Philips visionplus are probably the best to go for, and will give off clearer sharper light than stock, but i doubt theyre 50% brighter, maybe 50% whiter.
If u do alot of driving with the high beam and u dont mind buying an extra pair, then it would be good to replace high beams as well (H1). If not, just go the main beams (H7). I would stay away from any globe more than 55w, as the higher the voltage the more power it asks of the stock wiring and the hotter it burns so it could damage the reflector
U can leave the dipped beam standard. Not sure about the 147, but the 156 uses an irregular H6W, and the only "blue" alternative is Philip's BlueVision H6W. Unfortunately its not anywhere near blue, and just a little whiter than stock, better off putting the money towards upgrading the high beams
Last edited by TPIACE; 07-11-04 at 15:52.