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Approx 6 years ago,I installed upgraded holegan bulbs (in factory canister) within two of my vehicles and they work great. re: Replaced factory dim H11 bulbs with modified H9 bulbs. After H9 bulb install, I adjusted their aim as well. Yes. Low beam upgrade is one of the best upgrades I've done. Especially for my dark country roads. Didn't go with LED bulbs but next time, I probably will (especially since LED bulb selling price is coming downward).
re: Surf:
- click here - Note: After searching a few U-Tube clips, I noticed that different brands of LED bulbs behave different light behaviour. Some have better focused light beam - compared to others brands (in the same canister). Before buying / trying LED bulbs, recommend reviewing lots of U-Tube clips - to find the better LED Brands.
Hope this helps.