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Discussion Starter · #1 ·
I have the HID/Xenon headlights on my 2014 Cadenza, and the previous owner replaced them with really cheap bulbs that are yellow, have a very bad cutoff, and are not very bright. I’ve been looking around for better bulbs but have been unable to come to a solid conclusion on which ones would be best. does anyone have any recommendations? Preferably a bulb in the 5000-6000 range (I like white light haha) and something as bright as possible. I don’t care too much for the price as long as it isn’t absurdly expensive. If anyone has any recommendations I would be extremely grateful!
 

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If performance is your number one priority, then the bulbs you'll get rang in Kelvin from 4200-4800. Stay away from any of the lesser name brand bulbs. Phillips and Osram are kings in the HID bulb market.

The Osram NightBreaker Laser Xenerc seem to provide the best output through testing, with the Philips Exttreme Vision Gen 2 coming in behind it.

Here's a video that does a comparison. These are with D2S bulbs, but the D1S version should perform the same.

https://youtu.be/P0XGzDyMg_c

If the whiter color is what your after, the the Osram CBI, CBH, and CBB may be worth a look.

It's also important to purchase from a reputable source, there tons of fakes on the market.
 

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I'm pretty sure the Osram Nightbreaker is what I have in mine as well. I did the swap a couple years ago at best recollection. Extremely satisfied with them, even this much time later, they are holding up well.

I found it necessary to just drop the whole bumper cover and pull the light housing out of the car and work on it on a bench. Those brackets holding in the HID's require tool access, and I just couldn't come up with a way to do it while still on the car.
 

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Hi, the Osram nightbreaker is a good purchase, I've had them in my car for about 4 years now without an issue. If you're going to purchase them buy them from TheRetroFitSource, they are a reputable company to buy from. Avoid buying from Amazon or Ebay. Also, you could replace the lights with LED Lights https://www.theretrofitsource.com/h1-led-headlight-bulbs-morimoto-2stroke.html?carDisplay=2014+Kia+Optima+%28HID+Equipped%29&preselect=&preselect_restrict=1

The LED lights are instant on, whereas the HID's take a few seconds to reach full brightness. I have noticed that LED lights are usually a little bit brighter as well.
 

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For the best bang for your buck, I would recommend the Morimoto XB HID D1S Bulbs that we carry on our site. For $75 including shipping and 2-year warranty, it's hard to beat. Those are 100% plug & play & include shipping as well, and free replacement should you have any issues.

If you want to go brighter, these would be 20% brighter than stock, and are the OSRAM XENARC 66140 CBI HID D1S Bulbs. We have these in stock as well and they also include free shipping and a 2-year warranty.
 

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I ordered the OSRAM XENARC 66140 CBI HID from K5 back in December of 2014. Perfect color range and visibility if you prefer a bright white. Haven't had any issues with them in now going on 5 years, that's pretty hard to beat.
 

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Discussion Starter · #9 ·
Sorry for the late response, I sent one a few days ago but apparently it didn't go through. Thanks everyone for your help. I've taken what you've all said into account and I've done a little bit of research on my own and I think that when I get the opportunity to I'm going to buy the Osram CBB, they have the color that I want and a few comparison videos actually show them being slightly brighter than the CBH, CBI, and original Osram bulbs. I wasn't really able to find any Osram HID bulbs on TheRetroFitSource but I found the ones I needed on HIDconcept, hopefully this is a good website because they're having a really good sale over the fourth of July week. Thanks again!
 

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Sorry for the late response, I sent one a few days ago but apparently it didn't go through. Thanks everyone for your help. I've taken what you've all said into account and I've done a little bit of research on my own and I think that when I get the opportunity to I'm going to buy the Osram CBB, they have the color that I want and a few comparison videos actually show them being slightly brighter than the CBH, CBI, and original Osram bulbs. I wasn't really able to find any Osram HID bulbs on TheRetroFitSource but I found the ones I needed on HIDconcept, hopefully this is a good website because they're having a really good sale over the fourth of July week. Thanks again!

Awesome!!! I haven't seen the CBB's yet, but if they're slightly brighter I'd probably go for them too. Let us know how the install process goes, I had my dealership do it for 20 bucks about 4 years ago. After they got done they said they should have charged me more because it isn't as easy as just plugging them in (their words not mine). Don't forget some before/after pictures!! :)
EDIT: Totally forgot to mention that K5OS is a good company to buy from as well. I've purchased some LED's from them, and called them a couple of times for some questions.
 

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I'll throw in my $0.02 as well and say I highly support K5OS as well. They are active here in our small forum and are proactive in making sure our purchases are doing well for us. Any problems you ask about they will respond to you and help. They also stand behind the products they sell and will rectify any issues, all my purchases with them have been quality so far. They will usually have decent holiday deals too, just FYI.

There's a reason why I have a link to their product page in my signature, and it's not because I get paid or any discounts, I'm not affiliated with them in any way.
 

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Discussion Starter · #12 ·
I'll make sure I grab some pictures and videos along the way as well as before and after. Does anyone know how to take the bumper off? I'd rather know beforehand so I don't break anything as I try to figure it out.
 

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Discussion Starter · #13 ·
I'll throw in my $0.02 as well and say I highly support K5OS as well. They are active here in our small forum and are proactive in making sure our purchases are doing well for us. Any problems you ask about they will respond to you and help. They also stand behind the products they sell and will rectify any issues, all my purchases with them have been quality so far. They will usually have decent holiday deals too, just FYI.

There's a reason why I have a link to their product page in my signature, and it's not because I get paid or any discounts, I'm not affiliated with them in any way.
Im planning on grabbing some stuff from K5OS in the future, they just didn't seem to have the CBBs and that was a bit of a dealbreaker for me on this one :(
 

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Im planning on grabbing some stuff from K5OS in the future, they just didn't seem to have the CBBs and that was a bit of a dealbreaker for me on this one :(
I understand, just letting people know the score on it :)
 

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I'll make sure I grab some pictures and videos along the way as well as before and after. Does anyone know how to take the bumper off? I'd rather know beforehand so I don't break anything as I try to figure it out.
First is to take off the intake (two bolts), then the radiator shroud. On the bottom, take off the plastic clips holding the bumper to the skid plate. On each inner fender, there is a screw on the front side of the inner fender. You'll need a short screw driver to get those out. After that, it's all clips holding the front end in, pry slowly and it will come off. If I remember right, only thing to unplug is the fog lights



 

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Discussion Starter · #16 ·
First is to take off the intake (two bolts), then the radiator shroud. On the bottom, take off the plastic clips holding the bumper to the skid plate. On each inner fender, there is a screw on the front side of the inner fender. You'll need a short screw driver to get those out. After that, it's all clips holding the front end in, pry slowly and it will come off. If I remember right, only thing to unplug is the fog lights



Fantastic, thank you! As soon as I have a free day this will definitely be my project.
 

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Discussion Starter · #17 ·
Finally managed to get it done yesterday, wasn't as bad as I thought it would be and only took me about 2 and a half hours from start to finish. Thanks everyone for your help and input!

(Left is before, right is after)
The first photo shows just how big a difference there is in brightness. The hotspot on the CBBs is significantly larger and the cutoff line seems to be a bit sharper. You can sort of see the difference in color here.
The second photo really shows the difference of color when compared with my foglights (OEM LEDs.) The new bulbs light up my garage white/blue! My guess is that the old bulbs are around 4200-4400k (and they are towards the end of their life, they used to be even more yellow) The new ones are probably around 5200k but will supposedly color shift after about 20hours, ill make sure to update then if there is a significant change.
The third photo sorta shows the difference in light color coming directly out of the projectors. My camera isn't that great and I wasn't able to get the angles the exact same so this isn't the greatest photo to go off of.
The fourth photo is just a terrible picture/view of my car at night, the only reason I included it is because you can compare the lights to the ~3000k lights on my house and in my garage.

All in all this upgrade was totally worth it, just driving on the road I can tell a massive improvement. I can see much further and wider, and the side-to-side movement of my headlights is more pronounced now than it was before. The color is also much more pleasing and arguably makes my car look more modern.
 

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For the best bang for your buck, I would recommend the Morimoto XB HID D1S Bulbs that we carry on our site. For $75 including shipping and 2-year warranty, it's hard to beat. Those are 100% plug & play & include shipping as well, and free replacement should you have any issues.

If you want to go brighter, these would be 20% brighter than stock, and are the OSRAM XENARC 66140 CBI HID D1S Bulbs. We have these in stock as well and they also include free shipping and a 2-year warranty.
Will this properly fit the 2014 Kia Cadenza?
 
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