Bulb Size

[BlackFox]

My friend gave me some 9003 bulbs for the headlighs of my s14, the manual says 9005, but would 9003's fit? What's the difference? Cause I saw in a bulb application guide that 9003/9005 would fit, but that's a different brand or something. Anyone have info, I don't want to go and fry something.

[SilviaDriver]

wat are u talkin about? hi or low

s14s use 9005 for hi beam and H4 for low beam.

your friend gave u 9003 which is the same as HB2 which is the same as H4. so ur frined really gave u H4s just a different name. those lights ur friend gave u will work in low beam, but not high beam.

http://www.mccullochhid.com/pics/bulblist.jpg

if u look there, u cannot use the 9003 for ur high beam, becuz 9005 is totally different. 9005 and 9006 resemble each other VERY well, each are closly alike. Integra people do a 9005 conversion to their low beams

[BlackFox]

Oh, cool, thanks, I didn't even notice hi/low difference. oops. Yeah, for the low beam.