Best halogen bulbs for you ST1 guys in here imo... Osram cool blue h11 5000k. Really gives that HID look without blinding everyone. Visibility on the road is much better as well. :
OSRAM Cool Blue BOOST vs Cool Blue Hyper+ vs Philips DiamondVision 5000k Halogens - YouTube
Amazon.com: New! Osram H1 (448) Cool Blue Boost 5000K Hyper Blue Bulbs (x2) 62150CBB-HCB : Automotive
Amazon.com: OSRAM H11 12V 75W COOL BLUE BOOST 5000K Halogen Car Bulbs 62211CBB-HCB duobox (2 units) : Automotive
H7: Osram 5000K Cool Blue Boost Halogen Bulb 62210CBB (Pack of 2) - Walmart.com