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. :
H4/9003/HB2: Osram 5000K Cool Blue Boost Halogen Bulb 62193CBB (Pack of 2) - Walmart.com
Xénon H11 Osram Cool Blue Boost 5000K bulbs - 62211CBB
Amazon.com: OSRAM COOL BLUE INTENSE H4, +100% more brightness, up to 5,000K, halogen headlight lamp, LED look, duo box (2 lamps) : Automotive
Amazon.com: Osram COOL BLUE INTENSE H1, 100% more brightness, up to 5,000K, halogen headlight lamp, LED look, duo box (2 lamps) 64150CBN-HCB : Automotive
OSRAM Cool Blue BOOST 5000k review, unboxing, road test - YouTube
OSRAM COOL BLUE INTENSE NEXT GEN H1 Halogen Headlamp 64150CBN-HCB 12V Hard cover box (2 Units) - CarPartsTuning.com