Step Four: (drilling)
1. Get Ready - Each of the tabs that you just taped down have a post in the center of them. This is where you’ll be drilling pilot holes. I don’t remember what size pilot drill bit you use but refer to the instructions that come with your kit. This pilot hole bit will fit perfectly inside the post. Get your bit, put it in your drill, and don’t freak out (see picture) like my dad.
2. Pilot Holes - Insert the bit into the post on the tabs and drill (make sure your drill is set on “F” not “R”). Let the drill do the work (see pic). You don’t have to push really hard. If you push too hard on the drill you can damage the trunk when the hole is made as you will force the rest of the drill to strike the trunk causing dings and dents no G35 owner should ever have.
3. Remove the tape/tabs - Once all the holes are drilled remove the tape and the tabs. Your trunk should have a lot of little holes like these.
4. Safety first - Take your masking tape, and using two strips, tape a protective plus sign over each hold. You’re going to have to drill these holes out to a larger diameter. This will give you some protection from the drill hitting the trunk. Its not much but it will help.
5. Drill the real holes - Refer to the included directions for what size bit to use now. Using the larger bit drill out the holes to the larger diameter.
6. Whats Left - The four center holes (three for screws and the one for the brake light wire) are ready for action now and require no more drilling (big deep breath). Unfortunately you’re going to have to drill out some large holes to allow access from the inside of the trunk lid to the four end holes (two on each end of the outside of the trunk lid) you just drilled.
7. Mark it once - So as to know where to drill on the inside of the trunk lid, take a Philips head screwdriver and insert it into the four holes on the ends of the top of the trunk lid (two on each side). Using mild force strike the top of the screwdriver with your hand so that it scores or marks the underside of the trunk lid. This will tell you where you need to drill your holes (see picture).
8. Mark it twice - Use this same screwdriver in the same way on the underside of the trunk lid where you just made marks. Push those indentions back in, in the opposite way so that you have an indentation to drill on instead of a bump that would only cause you heartache. You can also use a screw and a hammer (that’s what we did) to do this. (See pic)
9. Drill, Drill, Drill - Once you have your indentations use a small pilot drill bit and drill through each of the four indentations. Now use larger drill bits to widen the hole until you reach 1/2 “ diameter. Do this in several steps skipping 2-3 bits every time you move up in drill bit size. Make sure to position your hole at an angle which allows you access to the smaller top holes. The goal is to be able to fit a bolt and a washer through the larger hole and up through the smaller hole above.
10. Hone it – Even the ½” bit isn’t completely large enough to fit a bolt and a washer through at times. With the ½” bit in the bottom holes wiggle it around evenly to widen the holes a little. Use one of the included washers and bolts (in the spoiler kit) to check to see if its big enough. If you can get it through the bottom (larger) hole and into the top (smaller hole) than its big enough. Take a deep breath… here comes the easy part.