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Old 06-02-2009, 12:01 AM   #1
MarkMarv
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Default 2009 WRX HID Kit

Want to upgrade my headlight and get a HID Kit for my car. I have heard that its not good to even get HID's for my car. If so, whats the problem with getting them. I found a site www.planethid.com. Has anyone heard of this site? Let me know what you guys think.
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Old 06-02-2009, 12:15 AM   #2
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The problem with getting it is because its wrong. Your WRX headlights are designed to be used with regular halogen bulbs (ones with filament inside). HID capsules don't have the filament to glow. It sends out a high voltage to create an electrical arc between two terminals. Because of this physical differences, the way they emit light is different. This indifference also makes HID kits terrible for producing uncontrollable light which glares at other traffic users. HID kits are basically HID capsules that are rebased into your halogen size. Real genuine HID capsules will not fit your WRX headlights.

planethid.com is a nice place to learn about HID and the importance of good optics. They are also one of the few that doesn't support HID kits (although there is a section of their forum to locate those ppl so they won't infest on the main forum). Take a good day or two to understand HID because you pull your credit card out for HID kits.
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Old 06-02-2009, 03:07 AM   #3
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the worst part about this is that your eyes trick you if you don't know the logic and science behind how you see and acquire visual information.

you might have seen hids or kits in halogen lamps and thought, 'wow, that's a lot of light.'

the thing is that more light is not better if the spread isn't even and thrown in a focused, projected beam.

the glare to oncoming cars isn't terrible in dry conditions(though it's worse, and that's enough reason to not use a kit), but it's still much worse in wet conditions.

you're actually decreasing the performance of your lighting with these kits in halogen optics because of the reasons Spore mentioned.

the upside of having halogen projectors, even though they don't work with hid rebased kits, is that it will be very easy to retrofit hid projectors from a different car- like an sti or such- so that you can have even light that is projected in a focused pattern.
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Old 06-02-2009, 09:42 AM   #4
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I replaced the H11 low beams in my 2009 Impreza with an HID kit.
I'm using the origonal projectors. They are like E-codes and are not
blinding oncomming traffic.

On the Audiforums, many of the members upgraded their H7 halogens
to HIDs with a kit from,

www.vvme.com
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Old 06-02-2009, 11:38 AM   #5
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Quote:
Originally Posted by CRAZYHAWK View Post
I replaced the H11 low beams in my 2009 Impreza with an HID kit.
I'm using the origonal projectors. They are like E-codes and are not
blinding oncomming traffic.

On the Audiforums, many of the members upgraded their H7 halogens
to HIDs with a kit from,

www.vvme.com
wrong.

and no one cares.
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Old 06-02-2009, 12:06 PM   #6
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I live and drive in NJ, the most densely populated state. Lots of traffic sees
my lights and nobody has flashed me.
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Old 06-02-2009, 12:15 PM   #7
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Doesn't matter the glass on the lens in a halogen vs xenon headlight are different. They might look clear and round to you, but in reality the Xenons have differences that reflect the light properly.
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Old 06-02-2009, 12:22 PM   #8
bcware
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actually, don't listen to the bandwagoneers. they'll bite your head off for even thinking about upgrading to hids with an oem non-hid projector, but what they always fail to do is differentiate between a 35w and 55w hid kit.

a 55w hid kit is too bright for the oem non-hid projector.

HOWEVER

a 35w hid kit puts out almost 2000 LESS lumen and works fantastically. i have them in, they do not blind, nor are they painful to look at. in fact, they appear no brighter than any other OEM hid kit on the road and the scatter is negligible.

on the road you KNOW when someone has a 55w kit, because it hurts to look at. you will not be able to tell a 35w kit apart from oem unless you pick a cheesy color.
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Old 06-02-2009, 12:31 PM   #9
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The kits that blind us are reflector not projector headlights.
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Old 06-02-2009, 12:35 PM   #10
Snow Drift
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HID Projectors and Halogen Projectors are different lens. They still blind and scatter the light.
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Old 06-02-2009, 12:38 PM   #11
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You mind seems to be made up. Those who are using HID kits on 2008 and 2009
Imprezas know they work well.
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Old 06-02-2009, 01:54 PM   #12
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Quote:
Originally Posted by CRAZYHAWK View Post
You mind seems to be made up. Those who are using HID kits on 2008 and 2009
Imprezas know they work well.

The kits that blind us are reflector not projector headlights.
a 55w kit is a little too intense even in the projector housing in my opinion, but i agree the projectors work well.

in my experience owning both types of kits, the 35w kit is guaranteed not to bother anyone while the 55w will bother SOME people. a 55w kit really does put out a LOT more light than a 35w kit, but even the 35w kit is a great upgrade over stock.
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Old 06-02-2009, 08:45 PM   #13
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Quote:
Originally Posted by CRAZYHAWK View Post
The kits that blind us are reflector not projector headlights.
Wrong and fail. You should stop making posts without understanding the science behind TRUE HID's, and further distributing ill information that then makes it harder and harder for the people who know what they're talking about to dispel the BS myths you flaunt as truth.

Quote:
Originally Posted by Snow Drift View Post
HID Projectors and Halogen Projectors are different lens. They still blind and scatter the light.

Truth^^.

OP and anyone else who doesn't understand, think of the projector as a magnifying glass, now imagine on a bright sunny day you're out trying to kill some harmless ants. You have to position the magnifying glass very carefully to fully, and accurately capture the suns rays in a very focused beam correct? Now imagine you find that position (where the beam is focused) and build an arm to hold the magnifying glass as to guarantee any ants that walk under will surely meet their maker. Still with me? Once you have your glorified ant killing machine ready, (think of this as an OEM setup halogen or HID) you then were to place a book under it (think of this as rebasing an OEM type bulb, ) you would be moving the magnifying glass further from the ground thus making it no longer be in focus correct? Sure you're still shinning light on the sidewalk, but at the end of the day, your not being effcient while doing it.


Basically what i'm trying to show is by using a rebased HID bulb (any NON-OEM hid kit IE: one that will fit your WRX) you are no going to gain the same focus point for the optics as you would with your OEM halogen bulb.

Hope that clears it up a little, and will get you to save up your money for a proper HID setup. (and before you attack back, yes I do have a proper setup on my car, and yes I am fully aware of the cost, But then again, what did your father always say, "if your not going to do it right, don't do it at all"
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Old 06-02-2009, 10:34 PM   #14
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I think Moscato has some wisdom here;
'Well its been almost too long that i have read post about HID upgrades and how they rule and how they suck. I will add my 2 cents and don't need change

Both sides have their points.... More on the side that says they don't work well.

However, there is a small percentage of headlights out in the market today that will take a PnP HID kit and work within acceptable levels (not blinding other drivers, and producing a decent light pattern..not too hot spotty).
Now this can vary from headlight to headlight and PnP HID kit combos, THERE IS NO GUARANTEE THAT YOU CAN DUPLICATE THESE RESULTS, EVEN IF THE HARDWARE IS THE SAME.

The tolerances we are talking about vary...A LOT, from bulb manufacturing to bulb positioning within a headlight and even ARC size within the bulb.

The odds that you get all these things working in your favor are slim. Not to say it cant happen, just don't get your hopes up.

With that say... I hope we can all just get along "
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Old 06-02-2009, 11:00 PM   #15
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unless you have light tunnel results with light meter readings and reputed scientific analysis by someone with credentials to back that up, i'm going to take the DOT and NHTSA word over yours.
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Old 06-03-2009, 12:02 AM   #16
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Quote:
Originally Posted by CRAZYHAWK View Post
With that say... I hope we can all just get along "
impossible. we're talking about cars here. it's either right or wrong, there is nothing in between /sarcasm

Quote:
Originally Posted by Handsdown View Post
unless you have light tunnel results with light meter readings and reputed scientific analysis by someone with credentials to back that up, i'm going to take the DOT and NHTSA word over yours.
this is far beyond excessive. a qualitative description should suffice. after all, we're talking about light bulbs here... a 35w hid kit in the 08 projector housing works fine. the light spread isn't perfect, but in my opinion does not justify spending hundreds more and a lot of effort for a retrofit. it works fine and doesn't blind, that is all i care about. only someone who knows a lot about lighting would even notice the flaws, my passengers won't and neither will oncoming traffic.

Quote:
Originally Posted by Handsdown View Post
you're actually decreasing the performance of your lighting with these kits in halogen optics because of the reasons Spore mentioned.
this is just plain wrong. my light output definitely increased with a 35w kit. does this mean that only perfect cut offs and an perfectly even beam pattern increases performance? i can see better, that's what i was going for and that is what i got.

nuff said
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Old 06-04-2009, 01:32 AM   #17
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Quote:
Originally Posted by Snow Drift View Post
HID Projectors and Halogen Projectors are different lens. They still blind and scatter the light.
Actually the lens is usually exactly the same. It is the reflector that is different.


Quote:
Originally Posted by bcware View Post
...this is just plain wrong. my light output definitely increased with a 35w kit. does this mean that only perfect cut offs and an perfectly even beam pattern increases performance? i can see better, that's what i was going for and that is what i got...
You really have a lot to learn about lighting. You are missing some very important concepts. First off I don't consider myself an expert, but I am fairly knowledgeable on the subject. I have an engineering background, have done several retrofits and have played around with a few kits just to see how bad they really were first hand. So let me explain some things.

There is a big difference between more light and better lighting. Beam pattern and light spread matters much more than the amount. Handsdown is perfectly correct. Your HID kit is far from an upgrade. Your stock halogen projectors use a light source that is about half that of and HID capsule. Since there is less light available for the optic to move around it is concentrated mostly in front of the car. Most HID optics spread the light out much wider because they have twice the light available to move around. Light concentration is measured in flux or lumen per square meter. With a stock halogen setup vs a stock HID setup the flux directly in front of the car is very similar. The HID setup doesn't provide very much more flux in the area right in front of the car than the halogen setup. The difference is the wider spread of light to the sides of the car.

So what happens when you put HIDs in a halogen projector. Hypothetically lets use a kit that had perfect light source alignment (which rarely happens) and the problem with the arc shape vs the filament wasn't a problem (which is absolutely impossible). So now we have a light source that is twice as bright as the stock one. It should produce an identical beam pattern and glare areas, but this pattern and glare will now have twice the flux (twice as bright). So there should be twice the glare from what the stock bulbs produced, and your fairly narrow beam has twice the light in a super concentrated pattern directly in front of the car.

I know what you are thinking. Twice the light even in your stock pattern is a great thing. Well you are wrong. You hop in the car after the kit is installed and you think wow this is amazing. They are so bright, and they are. But something else is happening that you are probably unaware of. Your eyes adjust your pupils based on the brightest light concentration in your field of view. So your pupils constricted to adjust to the new higher flux levels of your "upgraded headlights". So why is this bad? How often do you look outside of your beam pattern? If you drive at a fairly high speeds and can't use your highs you probably look ahead of your lights fairly often. What about the sides of the pattern? Deer, kids on Huffys, and homeless people with grocery carts always seem to pop out of nowhere from the sides of your car. Your pupils are already constricted, so light entering your eyes appears much dimmer than it appeared before your "upgrade". Less light is now entering your eyes from these areas outside the pattern. Which lights do you think would help you see the rouge homeless man? Your super concentrated pupil constricting ghetto HID kit, or your factory engineered and tested lighting setup? When you flip your highs on it doesn't get much better. The same thing happens less light is entering your constricted eyes from your high beam area and making your ability to see worse. Stock HID setups don't have this problem because the spread the light out more and have similar peak flux levels to halogen setups.

If you want to see exactly what your eyes are doing try this. Stand inside a dark room at night in front of a window. Look outside and let your eyes adjust. It is probably fairly easy to see things outside. Now flip a light on in the room and let your eyes adjust. It is now really bright in the room and the amount of light outside hasn't changed, but you probably can't see much out there. The same thing is happening with your headlights. The dark room thing just exaggerates it to the point where it is much more obvious to you.

So what have we learned, more light is not always better, more light in the right places is better.

Last edited by FourOnTheFloor65; 06-04-2009 at 01:50 AM.
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Old 06-04-2009, 10:29 AM   #18
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The 2008 and 2009 Imprezas have a wide pattern. I comparing
this to my previous Audi A4 , that had OEM HIDs.
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