What are some tips for installing Morimoto headlights on a Chevrolet Corvette C6?

Installing Morimoto headlights on a C6 Corvette is a Moderate difficulty job. It is largely a plug-and-play affair, but getting the body panels aligned and the beams aimed correctly takes some patience.

Here are the best tips and known quirks for this specific install:

1. Drop the Entire Front Bumper While you will see videos showing the installation done by only loosening the top of the bumper cover, community consensus highly recommends dropping the entire front bumper ¹. Flexing the bumper cover with the bottom still attached risks cracking your paint, and removing the bottom screws only takes about 10 extra minutes. Keep microfiber rags handy to place between the body panels as you work to prevent scratching.

2. Watch for the Hidden Fender Tab If you get the lights in and notice a gap (about 1/4-inch) between the top of the headlight and the fender preventing it from sitting flush, look under the fender. Some C6 models have a small alignment tab glued to the underside of the fender that originally mated to a plastic nub on the factory headlight ⁸. The Morimotos don't have this nub, and the tab will bottom out on the new lens. You can carefully pry this glued tab off to allow the fender to sit completely flush.

3. Properly Seal the Sequential Connectors If you want the turn signals to flash sequentially, you have to leave specific wiring connectors unplugged. Do not just wrap the open ends in electrical tape. Moisture will get in and corrode the pins. Buy or make proper sealed silicone caps for the open connectors ¹.

4. Protect the Lenses Before Install It is much easier to apply paint protection film (like Xpel or Lamin-x) or a ceramic coating (like Cerakote or Collinite 845) while the headlights are sitting on your workbench rather than after they are on the car ³.

5. Aiming the Headlights Do not skip aiming them, or you will blind oncoming traffic.

• The Setup: Park on level ground exactly 25 feet away from a wall. Mark the center of your car (the front bumper emblem) on the wall with a vertical piece of tape, then measure outwards to find your left and right center points ¹.
• The Spec: The top of the beam's cutoff line should be exactly 25 inches off the ground at that 25-foot distance ¹.
• The Adjusters: The inner screw (engine side) controls vertical adjustment, and the outer screw (fender side) controls horizontal adjustment ¹.
• The Tool: Use a 6mm Allen wrench on the adjusters. Turning the vertical adjuster clockwise will move the beam down ⁵.