As far as wiring goes, the set that I bought came with a 9006 wiring harness which simplified the transformation to H1 bulbs. Basically I ended up crimping on a butt connector to two of the wires on each harness and connector the crimped connector to the terminals on the back of each headlight. I ended up putting in a pair of Mtec H1 bulbs and am fairly satisfied with them but will probably retrofit an HID setup down the road.