how to put on a car spoiler

[WillowFitz]

Installing a car spoiler is a project that can range from a straightforward DIY job to one that requires professional help. The simplest method involves a trunk-lid spoiler that uses industrial-strength adhesive tape, while more complex installations, like a full wing or a bolted-on ducktail spoiler, require drilling into the bodywork. For most people, the safest and most reliable method is to use a combination of high-quality automotive adhesive and mechanical fasteners (bolts) for a permanent, secure fit. Unless you are experienced with bodywork and confident in your measurements, having a professional install a spoiler that requires drilling is highly recommended to avoid costly damage.

The installation process largely depends on the spoiler type and your vehicle. Here’s a comparison of common methods:

Installation Method	Best For	Difficulty Level	Key Tools & Materials	Risk of Error
Adhesive Tape Only	Low-profile lip spoilers, lightweight attachments	Low (Beginner)	3M VHB tape, alcohol wipes, masking tape	Moderate (Potential for misalignment)
Drilling & Bolting	Large wings, ducktail spoilers, performance use	High (Expert/Professional)	Drill, template, torque wrench, sealant	High (Permanent body damage if incorrect)
Hybrid (Tape & Bolts)	Most aftermarket spoilers for optimal security	Medium (Intermediate)	3M VHB tape, drill, bolts, sealant	Medium

Before you start, gather all necessary materials: the spoiler, a template (often provided), measuring tape, painter's tape, a drill with the correct bit size, a torque wrench, and automotive-grade sealant to prevent water leaks. The most critical step is precise placement. Use the template and painter's tape to mark the exact position on your trunk lid or hatch. Have a friend help you double-check the alignment from all angles before making any permanent marks or drilling.

If drilling, start with a small pilot hole to ensure accuracy. After drilling, apply sealant around the holes to protect the bare metal from rust. When bolting the spoiler on, use a torque wrench to tighten the hardware to the manufacturer's specifications—over-tightening can crack the spoiler or damage the trunk lid. For a tape-only installation, thoroughly clean the mounting surface with alcohol wipes, apply the tape, and firmly press the spoiler into place, applying pressure for several minutes. Allow the adhesive to cure for at least 24 hours before driving.

[RileyRose]

Honestly, if you're even a little handy, a simple lip spoiler with tape is totally doable. The key is the 3M VHB tape—it’s incredibly strong stuff. Just don’t rush the cleaning part. Wipe down the trunk lid with the alcohol wipes until it’s squeaky clean. The tape needs a perfect surface to stick to. Once it’s on, press down hard for a minute or two and just leave it alone for a day. If it’s a big wing that needs drilling, though, pay a pro. One wrong hole and you’ve got a rust problem and a huge repair bill.

[DiNorah]

From my perspective, it's all about the intended purpose. Are you aiming for a subtle aesthetic enhancement or genuine downforce for track use? For the former, adhesive is a viable, low-risk option. For the latter, a structurally sound installation is non-negotiable. This means drilling into the chassis or using factory-mounted points to handle the significant aerodynamic loads. A poorly mounted performance spoiler is not just ineffective; it's a safety hazard that could detach at high speed.

[AndersonRose]

I tackled this last summer on my old Civic. The scariest part was drilling into a perfectly good trunk lid. My advice? Don't skip the template. Tape it down exactly where you want it and use a center punch to make a small dent for the drill bit—this keeps it from wandering. Also, put a piece of tape on the drill bit to mark the depth so you don't go too far. Smear sealant around the holes before you bolt the spoiler on to keep water out. Take your time, measure three times, and drill once.

[Donovan]

The safest approach is to consider the factory option. If your car model has a spoiler available as a dealer-installed accessory, this is often the best route. It will come with a perfect template, the correct hardware, and instructions specific to your vehicle. While more expensive upfront, it preserves your warranty and ensures a perfect fit and finish. Aftermarket spoilers can be a gamble with fitment, and improper installation can void aspects of your paint or body warranty. The peace of mind is usually worth the extra cost.