I am using the following for low beams:
And for highs:
They are a very bright white beam and were a huge upgrade over the stock sylvania haolgens I had before.
Check your grounds and make sure they are cleaned up, a lot of people have commented on how that can help and also having a dedicated power line for it (use the search box, its been mentioned a ton if I recall).
Otherwise, I think your next best option is to go HID conversion.