The high beam and day time running light bulb are the same bulb. How is this achieved when the bulb is a 9007 (I believe). Is it something with the wiring or dual filament bulbs to achieve this?

I was looking to replace the DTR bulbs with JDM yellow bulbs.

I know I could just pull the bulb and look at it. BUt, rather not until I have the bulbs to replace the OEM ones.

 

I noticed this the other day on our new civic - I think it's got to be undervolting the high beam light to dim it down to that level, maybe only shooting 5 volts or something to it?

 

I don't know what the correct terms are, but there is a little box somewhere under the hood that reduces the voltage. This is fairly common among cars with DRLs. Actually, it's the only way I've personally seen it done. For example, the IS300 uses a 9005 bulb for it's high beam/DRL.

 

any way to get rid of DRL's?

i just got an 06 and my old car didnt have drl's

 

pull the fuse?

But why get rid of DRLs? I can't see why it would bother you...