If I was going to convert over to HID I would want to do the same as the factory (55w).
cryptiq, I know that you have given out a lot of information (from the other threads I have read). How do you feel yours are compared to your 525? I just got rid of my 335 and would like the same effect.
Personally I can only recommend the 35w kit. If someone else wants to be the guinea pig and try out the 55w kit, I would consider them if they were able to run them without issue. I read this on the kryptonbulbs.com website and it scared me away from the 55w kit.
It is strongly recommended that you use a relay harness with a 55W HID kit, 55W kits have been known to Damage stock wiring without this.
55W kits should not be used in small headlight housings (like fog lights) they can actually melt the lens
We assume NO LIABILITY for damages due to running 55W kits, ALL YOU NEED IS A 35W kit.
We are only offering these because of the demand, I Josh Sauls (the owner) DO NOT run 55W kits in my vehicles.
In comparison to my 525:
- I definitely prefer the whiter light my BMW has, that's why I'm steering you away from a 5000K or higher bulb.
- The cutoff on the BMW is slightly cleaner. This isn't really an issue but you might notice it when you're illuminating street signs 300' away and the reflection off them is really bright. I'm guessing BMW uses a better lens to achieve this. I need to test this a little bit more to get the perspective of what an oncoming driver might see, but so far it doesn't appear to be blinding oncoming traffic.
- As far as actual light output goes, well it's difficult to be objective on this - I really need to break out the DSLR and get some good comparison shots. I will say this, the first time I started going down a backroad with no street lights, a huge smile came over my face, I was really impressed that a $50 kit was putting out this kind of light. The output is well distributed with no hotspots. The slight blue tint of a 5000K bulb somewhat degrades your total light output, but from what I can tell without doing a good side by side comparison...I'd say they are at least 90% as good as my 525's output.