Finally got my retrofit finished on my 2011 Terrain that I've been working on for the past 9 months on and off. Having a 1 year old forced me to take my time rounding everything up and assembling it all.
What I used:
4TL-R projectors
Potted Denso Slims
Osram Nightbreakers
Philips 9011 HIR
High beam splitter
Anti-flicker capacitor
Morimoto relay harness

Originally I tried to go with OEM 4G TL projectors, which have the same bolt pattern but you have to widen the mounting bracket to fit them in. I bought them from yellow_cake who added a MH1 solenoid & shield to them, but needed tuning which was perfect since I was planning on doing all that myself anyways. But to get a good cutoff it seemed like I had to sacrifice a good amount of the hotspot and it was giving me nothing but problems every step of the way. So that's out.


So now I got 4TL-R projectors from Lightwerkz and surprisingly they bolt right in without cutting anything! So first thing I did was make foreground limiters and paint the demon eyes
This one was just a rough draft I made while I was stuck at work and couldn't test how it looked. I made a few before I settled on the final one


The 4TL-R is way shorter than the OEM 4G's which is awesome cause with the 4G I would've had extend the bulb caps. But it was also disappointing cause I already went through the effort to make a solution

I trimmed down and cut notches into bulb caps from an Acadia and I was gonna epoxy them to the factory caps. But oh well, one less thing to go wrong lol.
4TL-R on top. They are tiny compared to what I was expecting

Next was getting the igniter though the housing and figuring out what I'm gonna do with the ballast



I didn't get any pictures of how I mounted it but I stuck 2 bolts through bottom of the housing.

I tried to get this to work since there's a ton of room next to the high beam but just couldn't figure out how to secure it

Now for the fun part

I wish I could just leave it like this
Took a couple comparison shots on my phone. Exposure was locked but it was on my phone and it's only 1 of each projector but it really shows off the streak that the halogens have. That streak drove me nuts! That's all I would ever see driving this car


So the bolt holes are bigger on these projectors so I can't just throw them in and call it a day. But I just had to rotate it as far counter-clockwise as it'll go and it was perfect





I really wish I made the foreground limiter bigger. The foreground starts just past the hood when I'm in the car and it's a wee bit off center >.< but oh well I'll worry about it next time I have to open these up
High beams - Projectors+HIR




That's all I got for the lights so far. Next thing I wanna do is a custom DRL I sourced from a couple different Cadillacs. I got the acrylic rods from an SRX and the LED's from an XTS. It's just mocked up in a spare Terrain headlight housing I got. All perks of working at a dealership

Exposure dropped. These things are bright as fack!

I can't wait to get started on that part but that may be a long time before I can think about starting on that
Does anyone have any other ideas on how I can help secure the ballast? It's secure now but having all the weight being pulled on 2 #8 screws makes me feel a bit iffy about it working for too long. That's all I could come up with in a pinch.
What I used:
4TL-R projectors
Potted Denso Slims
Osram Nightbreakers
Philips 9011 HIR
High beam splitter
Anti-flicker capacitor
Morimoto relay harness

Originally I tried to go with OEM 4G TL projectors, which have the same bolt pattern but you have to widen the mounting bracket to fit them in. I bought them from yellow_cake who added a MH1 solenoid & shield to them, but needed tuning which was perfect since I was planning on doing all that myself anyways. But to get a good cutoff it seemed like I had to sacrifice a good amount of the hotspot and it was giving me nothing but problems every step of the way. So that's out.


So now I got 4TL-R projectors from Lightwerkz and surprisingly they bolt right in without cutting anything! So first thing I did was make foreground limiters and paint the demon eyes
This one was just a rough draft I made while I was stuck at work and couldn't test how it looked. I made a few before I settled on the final one


The 4TL-R is way shorter than the OEM 4G's which is awesome cause with the 4G I would've had extend the bulb caps. But it was also disappointing cause I already went through the effort to make a solution

I trimmed down and cut notches into bulb caps from an Acadia and I was gonna epoxy them to the factory caps. But oh well, one less thing to go wrong lol.
4TL-R on top. They are tiny compared to what I was expecting

Next was getting the igniter though the housing and figuring out what I'm gonna do with the ballast



I didn't get any pictures of how I mounted it but I stuck 2 bolts through bottom of the housing.

I tried to get this to work since there's a ton of room next to the high beam but just couldn't figure out how to secure it

Now for the fun part

I wish I could just leave it like this
Took a couple comparison shots on my phone. Exposure was locked but it was on my phone and it's only 1 of each projector but it really shows off the streak that the halogens have. That streak drove me nuts! That's all I would ever see driving this car


So the bolt holes are bigger on these projectors so I can't just throw them in and call it a day. But I just had to rotate it as far counter-clockwise as it'll go and it was perfect





I really wish I made the foreground limiter bigger. The foreground starts just past the hood when I'm in the car and it's a wee bit off center >.< but oh well I'll worry about it next time I have to open these up
High beams - Projectors+HIR




That's all I got for the lights so far. Next thing I wanna do is a custom DRL I sourced from a couple different Cadillacs. I got the acrylic rods from an SRX and the LED's from an XTS. It's just mocked up in a spare Terrain headlight housing I got. All perks of working at a dealership


Exposure dropped. These things are bright as fack!

I can't wait to get started on that part but that may be a long time before I can think about starting on that
Does anyone have any other ideas on how I can help secure the ballast? It's secure now but having all the weight being pulled on 2 #8 screws makes me feel a bit iffy about it working for too long. That's all I could come up with in a pinch.
Comment