I'm by no means an expert on this, but every car or truck that the owner slapped some cheap-o HID replacement bulb into didn't work worth $h!t. The factory or aftermarket manufacturer sells their headlights with H4, H1, H7, etc....bulbs because the reflector and lens were [hopefully] designed to work with the light output of those particular lamps. Putting in an HID H4 replacement bulb will do nothing but make your lights look blue and annoy oncoming traffic with their horrible glare. If you want true HID performance lighting you need to look for a unit that is designed from the get-go for HID lamps. IMHO- projector (aka- ellipsoidial) headlights are precisely designed for this application. Below is an example of what I'm talking about. Can you pick up a set for $80? No way, more like $500-$600! So if you are serious about performance lighting you'll need to shell out some cash. If that's out of the budget- go get some nice Hella E-Code Halogen units and put them in with some Silverstar bulbs and the ever-necessary relay upgrade and you will have very good light output!
