I did some research the prices are for both highs and lows from Xenondepot.com The 4100k bulbs are 800 and the 6000k bulbs (which are illegal) cost 1039. MTECs cost 90 for highs,low, and fogs. So you make the decision.
what??? 4100k are $800 dollars? and 6000k's are $1,039???
BTW most stock hids are 4200k I believe..and buying aftermarket HID's are all illegal now, not specific ones.