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Go Back   E46Fanatics > Tuning & Tech > Lighting Forum

Lighting Forum
Angel Eyes, DDEs, lighted rings, Clear Turn Signals, LEDs, Xenon, HID, or Bi-Xenon. If it lights up and you want to discuss it, post here!

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Old 09-08-2006, 04:45 PM   #1
kwlaznkid
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OEM projectors vs p46s..

what's the difference exactly between the two? basically right now i'm trying to choose between a pair of p46s and a set of oem xenons.. the oem xenons cost more obviously and don't come with ddes.. the only main difference i see is that the oems uss d2s bulbs and hte p46s use h7, does it really matter?

o my bad lighting forum .. mods move plz
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Old 09-08-2006, 08:31 PM   #2
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anyone know?
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Old 09-08-2006, 08:36 PM   #3
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As far as I know, the projection patterns of the OEM and Projector46's are very similar so light output would be almost identical as long as you use the same temperature bulbs. OEM are 4300k but most people with Projecto46's have 6000k or 8000k bulbs because the color looks cooler. However, it actually reduces light output compared to the 4300k. Other than that, there isn't much difference.
Now if your car comes form the factory with OEM xenons, then they would also have the self-leveling feature as well. This can be retrofitted into non-xenon equipped cars but it's a pretty big and expensive project.
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Old 09-08-2006, 09:08 PM   #4
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my p46s dde rings pissed me off. the invertor got messed up and i am still driving around with dde rings on my passenger side only. will get it fixed this sunday.
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Old 09-08-2006, 11:55 PM   #5
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u can do bi-xenon retrofit if u get OEM bi-xenons
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Old 09-09-2006, 12:58 AM   #6
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u can do bi-xenon retrofit if u get OEM bi-xenons
They didn't make OEM bi-xenons for pre-facelift sedans, did they?
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Old 09-09-2006, 12:59 AM   #7
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They didn't make OEM bi-xenons for pre-facelift sedans, did they?
no but u can buy the facelifted bi-xenons and just swap the cover and inner trim and it should work, i believe from what i read, then just wire it to be bi-xenon and uve got a bi-xenon pre-facelifted sedan
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Old 09-09-2006, 01:12 AM   #8
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From my experience:

P46's feel flimsy in comparision to the OEM unit. Flimsy in terms of things such as the knobs to adjust the beam pattern. The highbeam sockets seem to hold the bulbs with a more firm sense when you click them into their "closed" position (you'll know what I mean if you've ever changed out a lightbulb, its that open/close action you need to make on the holder to release it) The construction/material of the high/low beam assembly on the OEM units feel like they use a thicker grade as well. The highbeam dimensions are larger on OEM units, and this reflects highbeam light output by a big amount. OEM units are FAR superior in their highbeam output. Projector46 units use a clear lense, which gives you much more clarity and detail in everything in the beam pattern. The OEM single xenon's use a fresnal lense (circular lines in them) which fuzzys up the output and beam pattern. This reflects itself on the road and lights up things fuzzy. Bi-xenons aren't alot sharper, but they are noticable wider in their output because of the larger projector lense. OEM units have far superior beam patterns, but you can modify the P46 cutoff shield to produce more light like I did on mine. Its close to OEM single xenons in terms of light spread now, but with alot more clarity because of the different and more clear projector lense.

You can definately purchase Bi-xenons from a 2002-2003 coupe or from a 2002+ facelift sedan and install them on your coupe. You just can't use the facelift coupe bi-xenons.

The use of a D2S bulb or an H7 bulb goes more to it than the bulbs themselves. You can stick D2S bulbs in any housing, but the focal point might not me optimal so you'll get crappy output compared to an H7 bulb or vice vera. The projector bowl design and lense plays a role in output as well.
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Old 09-09-2006, 01:47 AM   #9
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^^wrong only sedan xenons will fit on a sedan and coupe for coupe
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Old 09-09-2006, 04:13 AM   #10
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Quote:
Originally Posted by BMW Loe View Post
From my experience:

P46's feel flimsy in comparision to the OEM unit. Flimsy in terms of things such as the knobs to adjust the beam pattern. The highbeam sockets seem to hold the bulbs with a more firm sense when you click them into their "closed" position (you'll know what I mean if you've ever changed out a lightbulb, its that open/close action you need to make on the holder to release it) The construction/material of the high/low beam assembly on the OEM units feel like they use a thicker grade as well. The highbeam dimensions are larger on OEM units, and this reflects highbeam light output by a big amount. OEM units are FAR superior in their highbeam output. Projector46 units use a clear lense, which gives you much more clarity and detail in everything in the beam pattern. The OEM single xenon's use a fresnal lense (circular lines in them) which fuzzys up the output and beam pattern. This reflects itself on the road and lights up things fuzzy. Bi-xenons aren't alot sharper, but they are noticable wider in their output because of the larger projector lense. OEM units have far superior beam patterns, but you can modify the P46 cutoff shield to produce more light like I did on mine. Its close to OEM single xenons in terms of light spread now, but with alot more clarity because of the different and more clear projector lense.

You can definately purchase Bi-xenons from a 2002-2003 coupe or from a 2002+ facelift sedan and install them on your coupe. You just can't use the facelift coupe bi-xenons.

The use of a D2S bulb or an H7 bulb goes more to it than the bulbs themselves. You can stick D2S bulbs in any housing, but the focal point might not me optimal so you'll get crappy output compared to an H7 bulb or vice vera. The projector bowl design and lense plays a role in output as well.

lol thanks for being so honest even though ur the person i might be getting the p46s from haha
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Old 09-09-2006, 07:38 AM   #11
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^^wrong only sedan xenons will fit on a sedan and coupe for coupe

Facelift coupes will NOT fit any other vehicle.

Facelift sedans, preface lift sedans, and preface lift coupes are swappable You need to replace the inner trim and outer cover.

You just said that here

Quote:
Originally Posted by BMWPower06
no but u can buy the facelifted bi-xenons and just swap the cover and inner trim and it should work, i believe from what i read, then just wire it to be bi-xenon and uve got a bi-xenon pre-facelifted sedan
I didn't suggest the inner trim and out cover part because my conversations with kwlaznkid
suggest that he's pretty capable of knowing what to do to get them to work

The only issue he'd run into with purchasing Bi-xenons is that the majority of the headlamps use screw-in corners. Since he is a prefacelift coupe coupe, he have no worries since upper 2001's through 2003's had screw-in corners available. I know that was a concern with him, otherwise he can swap the inner bi-xenon high/low beam assembly into his current clip-in headlight.

Wiring for Bi-xenons on a 1999-2001 model is hard, they don't have the LCM to support bi-xenons. It was an issue and question in this thread from a member who did a facelift conversion on his sedan http://forum.e46fanatics.com/showthread.php?t=396571
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Old 09-09-2006, 02:18 PM   #12
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You really can't go wrong either IMO. The kicker for me is the fact that for a used set of OEM xenons, that may have been in an accident, tampered with, have broken clips etc...you can get a BRAND NEW set of OEM quality projector headlights with built in and preinstalled angel eyes and HIDs that are backed by our full lifetime warranty.
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