Join Date: Mar 2005
Location: Granada Hills, CA, US
You might get a lot of different input regarding the lights. i've been looking at various threads on various BBS and have used both PIAA 1100X and MotoLights (fork mounted). IMHO, the best bang for your buck is to upgrade the headlight to HID. List price for a kit is $199,- but some say you can get it cheaper if you do some negotiating.
None of the light kits (PIAA motolight) have higher output than the stock headlight, although the whiter light will give you a slightly different perception.
The PIAA 1100X and Motolights are 'driving lights', so their pattern is similar to your headlight. The Hella Micro DE has a fog light (wider) pattern.
The aux lights, IMHO, help you SEEN better by others (triangular pattern, etc.). The HID headlight mod will help YOU see better.
As far as installation goes, the PIAA lights are popular because they are small and can be installed inconspicuously under the nose cone. The Hella typically installs under the mirrors and that installation requires some driling/filing of the mirror housing. The MotoLights are typically mounted on the fork where the brake calipers are mounted, so that patter is pretty low.
Interestingly there is a set of (purportedly BMW oem) aux light kit listed on eBay complete with PIAA 1000 lights and aluminum mounting hardware, that mounts onto the wings and which I've not seen discussed here before (BTW, it's not my listing, and I'm not affiliated with the seller!)