Most 35W applications won't necessarily need the extra wore harness, since halogen bulbs usually run around 40-45W, which is more than the HIDs. Thus the stock wiring should be sufficient.

But like you stated, most of the 55W kits will come with a relay harness of some type. I'd not, I'd highly suggest in investing in one to save yourself the hassle.

 

Whether it's the 35 or the 55 watt set, you should always get a separate harness. It's the start-up wattage needed to fire the bulbs that will kill the stock truck wiring eventually.

 

harness was warranty put the new one in and workd fine. also got a backup set of bulbs which comes with new harness/relay kit.

 

hey if someone can pm me and tell me where i can get the HID's with the high beams please do so because i have the ones with only lows and it annoys the **** out of me.

 

ddmtuning but they have a 7-10 business day delay on all of their orders

 

I ran into this same problem today. I contacted DDM and im still waiting for them to get back to me. Except my twist, i'll turn the high beams on, they both shut off. But sometimes, when I switch it back to low's, my passenger side light, doesnt illuminate. So I switched the ballast around, and it does the exact same thing for the driver side now. I suspect a ballast problem, but i'll see what they say.