Having had allot of experience with lighting on my Galant VR4 Rally Car I have some simple advise. Just like there is no substitute for cubic inches in an engine, there is now substitute for WATTS when comparing Halogen lights. Yes, I know all about lumens etc. Anytime you color a light bulbs globe (part of glass that houses the filament) you loose lumens. The only way to make this up is with more power (WATTS).
Currently I am running Hella Optilux 80W lowbeams and 100W highbeams. While they are, unfortunately, blue globes, the extra 60% in WATTS more than makes up the difference. Are they better than HIDS, HELL NO! Are they better than Sylvania's, not sure as I have never tried them. Are they better than stock, HELL YES! Still, I really do wish Hella still brought to the USA their 100W, clear globe 9005/9006 bulbs. Those were made in Europe and way better than their blue, Korean Optilux product.
I want tot try the highbeam bulb mod for the fogs right now! My fogs do not go down the road at all! I am hoping removing the "cover" on the globe of the stockers will give me some more coverage.