4hi mod with Hids?

[Mf2racer]

I have a 1999 Silverado and just took advantage of the hidextra black friday sale got Hi beams and Low Beams can I still just ground out the negative wire on the drivers side light and achieve the 4hi mod or is there another way I have to do it?

[oleshifty]

You can either use a diode at the relay.... or add a 2nd relay.

I chose the second method (I'm not a big fan of relays)...basically you use the ground wire of the brights to ground the low beams. That way...lows work like normal, when you put on brights, all 4 come on. There should be a sticky about it, if not do a search, I know I put a wiring diagram up last year at some point. I can go outside and look at the wires if you really need me to.

[Mf2racer]

If you could hook me up with a diagram that would rock. I have tried searching no luck. Everyone I see just grounds straight to the truck.

[oleshifty]

http://www.ls1truck.com/forums/elect...eadlights.html

[Mf2racer]

Yep I read that thread post number 20 confirms I just ground the light out to the truck. I just didn't know if it was different with Hids. Thanks

[Frenchy]

Just ground it upstream of the ballast.

[zebra]

can't use a diode on a 99 - there's only 1 relay. do the ground method. takes all of a few minutes. i don't know why you got HID highs, though. unless you're gonna always have them on long enough for them to fully warm up all the time, the bulbs are gonna have a shortened life switching back & forth that much

[bartjo06]

can't use a diode on a 99 - there's only 1 relay. do the ground method. takes all of a few minutes. i don't know why you got HID highs, though. unless you're gonna always have them on long enough for them to fully warm up all the time, the bulbs are gonna have a shortened life switching back & forth that much

This. Had highs in my OBS and never even used them because my lows were so bright. That, and switching to highs on a dark ass road at night with HIDs=

[bangbangskeetskeet]

This. Had highs in my OBS and never even used them because my lows were so bright. That, and switching to highs on a dark ass road at night with HIDs=

That's why the high 4 mod is so good if you have hid highs. You get the low all the time and then when the high is fully warm you see for miles.

[bartjo06]

That's why the high 4 mod is so good if you have hid highs. You get the low all the time and then when the high is fully warm you see for miles.

It is nice, people in oncoming traffic do NOT like it when I run my lows and fogs. Some guy on the interstate got atomic pissed off at me the other night when I came up behind him with just the lows on, don't know what he wanted me to do