runner140*

Or in anyway going to damage the electrical system in our house?

Sorry for the sarcasm...you didn't deserve that.

Tsumi

Nope, but it will annoy people, and put you at risk for getting pulled over by the LEOs.

Those that say they see better with LED bulbs… BS. The science and proper testing has proven that LED bulbs do not put out the proper light output. The reason people think it is better is because whiter light seems like it is brighter when it actually isn't, and LEDs and HIDs often throw a lot more foreground light, which compromises long distance vision.

To date, the only LED headlight bulb that has been proven to be at least as good as halogen bulbs are the $200+ Philips H4 bulbs.

chasboy

I agree with Tsumi. To me the jury is still out on the viability of LED headlights.
There seems to be a terminology confusion in this thread. A hyperflash harness is for the flashing/signal lights in a car, and should have nothing to do with the headlights.
A "Hi-4" or "All 4" is designed to allow all 4 headlights to be on at one time. I installed both of them on my Z and my Pewter coupe.