My friends IS300 are bright as hell, but my friends Acura TSX are the nicest and brightest looking HID's ive ever seen on a stock car, they are blue/purple and bright white, truely amazing, my M3's Bi-Xenons are also very good, i had the 8000k in my G35 and you do not want them, believe me! Its like a solid color beam of blue/purple and if yout hink stock is bad you cant see anything with 8000k especially on the wet ground, one thing it does is make everything white or reflectors glow! But i wouldnt recommend them, they didnt evne look good, 6000k in my M3 looks amazing, so bright!

 

8000k =




4100k =

 

I have an extra set of 8000K H4's sitting around. I'll plug them in instead of the fogs and see what happens. As a side note, I have a second set of 8000K's in my 4runner (w/ standard reflector housing) and I can tell you that night visibility has improved DRASTICALLY. The cut-off is SHARP, and there's no hint of glare. I was very careful about this, I conducted numerous tests in terms of having the vehicle in different positions and distances away from a marking wall and other friend's vehicles in different positions in relation to mine. I can tell you guys that the 8K's cause much more visibility due to the reflection of phosphrous and fluorescent material (such as road signs and car paints). So, although I'm not disputing the "lumens" and "candela" numbers that the 4K's are brighter...that may only be in theory and not on a live-theatre application. As of now, the 4K's have proven to be inferior. Furthermore, I can honestly say that the Audi and BMW OEM projectors have an an absolutely shameful amount of glare. And they only get away with this because they are "BMW" and "Audi". You definetely know when one of these cars are driving behind you at night.

 

Q45 projectors into the G35 headlamps = FAT CHANCE!

Q45 projectors are monster projectors. There is no way for Q45 projectors to fit in our headlamps looking flush.