Ever since BMW introduced the world to angel eye headlights there have been kits available for pretty much every car around now. The best angel eye kits include a whole light cluster which is a drop in replacement for the standard headlights. Some companies offer the angel eye ring to fit into your standard lights but these present a number of problems. Few headlights come apart easily. You also risk changing the projected bulb pattern, a blank area near the bulb will dramatically reduce the emitted light and if the light is diffussed you risk failing an MOT test.