GT500 HID Headlights Swap

Replaced stock headlights on 10/11 GT with GT500 HID headlights and retained low and high beams using stock switch on steering column.

1. Removed front bumper cover
2. Replaced stock headlights GT500 HID, 3 bolts hold them in place
3. Reinstalled front bumper cover
4. Installed one relay next to the fuse box to power the HID ballast with battery 12 volts
5. Cut out stock driver and passenger headlight 3 wire pigtail and replaced with new 4 wire pigtail
6. 1st wired low beam on new pigtail to new wire installed and ran across to passenger side new pigtail low beam and passenger side stock low beam (blue wire)
7. 2nd wired stock ground on both sides to new pigtail ground
8. 3rd wired the power out from the relay installed in step 4 and ran that power to passenger side new pigtail ballast and ran a new wire across to the divers side new pigtail ballast connecting both sides together
9. 4th wired the stock high beam (brown wire) on the dirves side to new pigtail high beam
10. 5th Installed a second relay and attached to bottom forward side on the fuse box to power the low beams when you select high beams
11. 6th wired the stock high beam (yellow wire) to the stock high beam on the new pigtail and also connected that (yellow wire) to the second relay to trigger it to power the low beams when you select high beams, yes you will put power from the second relay to the low beam stock (blue wire) and its being triggered by the stock high beam (yellow wire) on the passenger side.
12. I cleaned up all wires with electrical tape for a stock look
13. in step 6 and 8 i ran the new wires along the harness in front of radiator

The green wires are from the new pigtails all 4 wires are green.


Parts need are GT500 HID complete headlight assmeblys, two new 4 wire pigtails from FORD for the new HID headlights (I do have pigtail P/N from FORD), tow relays, wire and electrical tape black or what ever color you prefer

Nice writeup.

I think you're the only other person on here besides me who actually likes the HIDs.

Thanks for the install details!

I like the HIDs, but wish they weren't cross-eyed.

Where'd you get them?

Good tech, Mr. Electrician!

Congrats, nice write-up!

I LOVE my HIDs. They were a "must have" when I updated from my '07 GT/CS.

Sky Render, I just didn’t like the appearance of the stock headlights and the gt500 hid lights enhance the front end look

S197, got them on e-bay

NICE. I was going to try this.. but didn't have the money. LOL

btw, willing to sell your stock headlights for dirt cheap? =]

How much did the parts cost?

Sky Render said:

Nice writeup.

I think you're the only other person on here besides me who actually likes the HIDs.

Click to expand...

Add me to that list (I ordered them as an option from the factory). I like their performance and their appearance - IMO they give the car a more modern, sinister look. Very happy with mine!

And nice write-up by the OP for those interested in doing this. Love these DIY write-ups!

HID's was a must have option when i got my 5.0. Whats the difference between the GT500 HID's and the 5.0 HID's?

blackmustang12 said:

HID's was a must have option when i got my 5.0. Whats the difference between the GT500 HID's and the 5.0 HID's?

Click to expand...

I'm curious about this as well. They look the same to me, but maybe I've never seen them side by side...

Sorry this is bit off-topic but I noticed you have the Edelbrock E-Force supercharger and are able to get a strut brace in there with what looks like the stock hood. Is that the Boss or V6 brace or is it something else?

chutoyy, make offer

blackmustang12 & Kris_H, as far as know and seen they are the same on the 5.0 and GT500

yellowrubiu, its the stock strut brace from a 2010 GT and the stock hood

must007 said:

chutoyy, make offer

blackmustang12 & Kris_H, as far as know and seen they are the same on the 5.0 and GT500

yellowrubiu, its the stock strut brace from a 2010 GT and the stock hood

Click to expand...

i was thinking they were the same also but wasnt sure. thanks

Thanks for the walkthrough.

I like them as well, since my first car was wrecked by the shipping company I ordered the second with the addition of the HID's!

The only thing that kept me form the HID's was that you needed to add the security option to the car. Basically, they sold you wheel locks...

Tib02 said:

The only thing that kept me form the HID's was that you needed to add the security option to the car. Basically, they sold you wheel locks...

Click to expand...

Also active security with motion, tilt, and glass-break sensors. But yeah, also wheel locks. I didn't install mine.

Tib02 said:

The only thing that kept me form the HID's was that you needed to add the security option to the car. Basically, they sold you wheel locks...

Click to expand...

Like Hawkeye said, it's more than wheel locks. It's also an active anti-theft system.

I one time went into a store and my wife stayed in the car. I locked the doors with the remote, and about a minute later the alarm went off because my wife shifted position in her seat.

It also lowered my insurance by about $5 a month.

Hahaha, I've totally done that to my wife, too. At a Wawa. For 10 minutes. She was NOT HAPPY.

Also, I've discovered interestingly enough that if you lock the car with the windows down, the alarm will go off if somebody walks next to the car. I thought the motion sensors were supposed to be disabled with the windows down? Whatevs.