Build a SpoilerThe engineering

Build your spoiler.

Pick your car’s color, pick a spoiler, spin it around. It ships flat and snaps together.

Pictures are made from the CAD. Spoiler colors on screen are close, not exact.

1 Spoiler
2 Your car’s color Grey
3 Spoiler color Matte black

Matte black is carbon fiber reinforced plastic. The other colors are a solid-color plastic without carbon fiber, same shape and kit.

V3 Beta kit, matte black$999

Flat-pack kit: 8 numbered sections, mounting tape, prep wipe, build video. Shipping shown at payment.

V3 Beta kit Grey car Matte black
$999Build mine

Flat-pack, numbered, snap together

123456781,429 mm tip to tip, 8 sections, plan view from the CAD

In the box

  1. 01
    8 numbered sectionsThey snap together in order, 1 to 8.
  2. 02
    Pre-cut mounting tapeAlready cut to fit.
  3. 03
    Surface-prep wipeCleans the trunk lid before the tape goes on.
  4. 04
    Build videoYour manual, step by step.

Measured results

Only numbers measured on a real car go here. Simulation results live on Open Source Tezla.

V3 Alpha, energy use300 → 240 Wh/miOwner-measured on the developer’s Model 3 Performance. One car, not a controlled test.
V3 Beta, on-car resultsNone yetNot measured on a car yet.
Finished weightNot yet publishedPosted after weigh-in of production kits.

CFD results and the full white paper on Open Source Tezla ↗

The part

FitsTesla Model 3, 2017 to 2026
Coming soonModel Y Gen 1 and the refreshed Model Y
Construction0.7 mm single-wall exoskeleton airfoil
MaterialCarbon fiber reinforced plastic in matte black; a solid-color plastic without carbon fiber in the other colors
FinishMatte black, or any of 30 solid colors

Install it once

We strongly recommend professional installation. The spoiler is bonded with tape in one position and is not designed to be removed, repositioned, or adjusted afterward: doing so can damage its 0.7 mm skin. The build video walks your installer through every step.

Installation notes ↗