Download 2018 Honda Civic Rear Under Spoilers Installation Instructions – 1. Remove the rear bumper: • Apply tape to the areas shown on each side. • With single muffler: Remove two hex bolts, four clips, and four self-tapping screws. • With dual muffler: Remove two hex bolts, four clips, and four self-tapping screws. • With the help of an assistant, release eight retaining tabs on each side. NOTE: Remove the retaining tabs from the outside in the order shown and the correct orientation.
• With the help of an assistant, remove the rear bumper. Place the rear bumper on a blanket to prevent damage. Installing the Rear Under Spoilers If the vehicle is equipped with the single muffler, continue with step 2. Otherwise, go to step 3. With single muffler 2. Remove the right finisher cover. Go to step 4. With dual muffler 3. Remove the left and right finisher covers. 4. Using a pushpin, pierce the center of the four scribe marks on the left side of the rear bumper.