Brighter headlights, how to coming soon

[Driftin SI]

I hate crappy lighting. That is one of my biggest pet peeves. I will be installing a relay harness soon to get some more juice out of the factory lights. I will have a complete how to written up for you guys. I have done this on all of my previous cars with exceelent results, stay tuned :)

[oogy-boogy]

Ooooo! Keep us posted! I would definitely do this! :D

[kadafi]

I did have this kind of harness relay on my Impreza before, it improved the brightness about 10~15%(stcok bulb).

I would recommend using 80W/100W if you have this harness, then the output would boost up to 20~30% from stock bulb without harness.

[Spidey]

how much would the life span be shortened by? or maybe it would be insignificant to notice?

[kadafi]

since the suspension on my Impreza was very hard, so the bulb burned out within 6 months.

(yes, the harshness of suspension is related to the lifespan of halogen lightbulb!!!)

[kadafi]

stock harness usually provides 10~11v, using relay harness directly from battery is to make sure it stays at 12v constatly.

Then I bought Catz Zeta ballast for halogen bulb.

well, it boost up 12v to 14.5v, it's brighter than the relay harness setup.