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How to Install a Spoiler

Whether you have a sweet sports car or stylish luxury sedan, nothing adds an extra bit of flair like a rear car spoiler. This piece not only defines your vehicle's curves, but it also helps cut down on drag, which can improve your car's traction, handling and overall performance. A body shop can charge a pretty penny to mount one. However, you can save money by installing a rear spoiler on your own. Here are the tools and necessary steps to get the job done right.

What you'll need:

  • Tape measure. Use this to determine your trunk's length and width before choosing a spoiler.
  • Rear spoiler. Some might come as part of a body styling kit while others are sold separately.
  • Ratchet and socket set. The ratchet and socket set fastens the bolts holding the spoiler.
  • Screwdriver. A Phillips or flathead might be required to remove the trunk door fabric.
  • Marker. Use a marker to indicate where each hole belongs.
  • Drill and a proper bit. The drill will add the necessary holes on the truck.
  • Sandpaper. Use a piece of sandpaper to smooth out the drilled holes.
  • Safety goggles. Have a pair of safety goggles on while you drill the holes.
  • Touch-up paint. Apply this on and around the drilled mounting holes.  

Step 1: Measure your trunk.

Use a tape measure to find out the width and length of your car's trunk. Do this before purchasing your rear spoiler so you don't waste money on one that doesn't fit properly  


Step 2: Remove the fabric cover from inside the trunk.

Open the trunk and take out the hard fabric lining from inside the trunk door. Sometimes, this fabric is held down by bolts or screws. Use the either a screwdriver or the ratchet and socket set to help expose the trunk's metallic frame.


Step 3: Line up the rear spoiler on the trunk.

Close the trunk and line the spoiler up on the trunk's surface where it's being installed. Make sure this spot doesn't interfere with any wiring under the trunk door. If so, move it accordingly. Use the marker to indicate where the holes belong before drilling.


Step 4: Drill the holes.

Put on your safety goggles and drill holes into the trunk's surface on the marked spots. Remember to make them large enough to fit the bolts.


Step 5: Smooth out holes with sandpaper.

Before you apply touch-up paint, smooth the drilled holes with a piece of sandpaper.


Step 6: Paint the holes with touch-up paint.

Use a small amount of touch-up paint to cover the exposed metal. This prevents the holes from gathering rust over time.