88-91 EF Headlight Conversion HarnessIN STOCK SHIPS SAME DAY USDM To EDM And JDM Headlight Conversion Harness set. What Is This? Allows You To Run The H4 Single Bulb Headlights In Your 1988 1991 Civics To Have Low Beam And High Beams, Just Like 1992+ Honda Bulbs. SEE EXAMPLES BELOW Don't Hack Up Your Current Wiring Just To Cause Problems Down The Road, (Or On The Side Of The Road For That Matter). How Do I Know If I Need This? If Your New Headlights Have 1 Hole For 1 Light Bulb And Does