plug and play HID sa left, H4 on clear headlamps vs. HID projector retrofit sa right:



pag ikaw yung kasalubong, eto ang difference:



performance is one thing, glare to other motorists is another factor to consider.

BTW, I've seen a retrofit sa MR2 '94 sa U.S. Hanapin ko yung pix. Better halogen bulb is also a good option.