Based on my experience I would not advise to waste time with leds for these reasons:
- The light beam is more powerful, but it's "strange" and there is no overall improvement over the combination oem halogens + oem foglights,
- the retaining clips of the bulbs rub against the heatsinks making a very annoying noise around 6000 rpms,
- I have many doubts about the impermeability, whatever caps you use,
- There is a "ball of light" effect which aesthetically is a bit ridiculous (see attached pic).
In short, even though I read that many are satisfied with the leds, I have quickly gone back to halogens.
Maybe it would be worth trying with a xenon kit instead.
Just my opinion.