I have a base model and thinking of upgrade my headlight to stock hid.

anyone knows how and how much it costs ?

 

Heh, I'm almost tempted to swap with you. The HID isn't all it's cracked up to be, imo. But, I'm not inclined to rip it out either I guess it's my way of saying you're not missing all that much. You might consider upgrading your halogens with better bulbs.