Do the factory skirts come off?

It depends on the design. Full replacement skirts mount to the bare sill; extension designs fit over the factory skirt. The part description states which.

Can I order a single side?

Yes. MOQ is one piece — useful for kerb damage repairs on a car that already has the kit.

Will skirts hit the jack points?

The jacking positions are accounted for in the mold, but the clearance under a skirt is less than standard. Use a pad and check the position before lifting the car.

Do skirts have to match the lip and diffuser material?

They should, because the finish is continuous down the side of the car. Mixed grades are possible if you say so on the quote and the surfaces are prepared to match.

What is the lower lip listed separately?

A second-stage add-on that drops the skirt line further. Several vehicles have one; order it with the skirt from the same design so the two follow the same line.

Aero parts · made to order

Side Skirts

skirt and skirt-extension designs across every vehicle we tool — the part that ties the front lip and the rear diffuser into one line down the car.

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A CMST carbon fiber side skirt fitted along the sill of a yellow Porsche 911

Skirts and skirt extensions

Weave / surface

Woven
Forged
Honeycomb
3K woven
1×1 weave
Gloss
Matte
Paintable / unpainted
Painted black
Painted

Fitment splits on

991.1 Only
991.2 Only

The same vehicle has more than one version — send the chassis and we will confirm which one fits.

Supply terms

Mounts to: The factory sill, or over the factory skirt on extension designs
Ordered: As a pair; single sides available for repairs
Related items: Side skirt lower lip, listed separately on several vehicles
MOQ: 1 piece, mixed across parts and vehicles
Lead time: 7–20 days on standard orders
Warranty: 3 months on carbon parts from the date of fitting
Packing: CMST-branded export packaging with product label and parts pack

Every mold starts from the car's own body surface. A 3D-printed sample is trial-fitted on a real vehicle before the mold is cut, and the first production part is fitted again before it ships.

Find your vehicle

Every vehicle below has at least one part in this category. Open a vehicle to see its kits, the material grades it is tooled in and what each kit contains.

Marques carrying this part

All marques

Grades this part is tooled in

Dry carbon
Prepreg, lightest, finished twill or forged weave.
Vacuum carbon
Gloss clear coat, the volume carbon grade.
FRP
Primed and paint-ready, for skirts painted body color or gloss black.
ABS
Molded-in gloss or matte black, no paint required.

Five grades run through the same molds. Ask for the grade by name on the quote — it changes weight, finish on arrival and price band, not fitment.

Questions buyers ask

Do the factory skirts come off?: It depends on the design. Full replacement skirts mount to the bare sill; extension designs fit over the factory skirt. The part description states which.
Can I order a single side?: Yes. MOQ is one piece — useful for kerb damage repairs on a car that already has the kit.
Will skirts hit the jack points?: The jacking positions are accounted for in the mold, but the clearance under a skirt is less than standard. Use a pad and check the position before lifting the car.
Do skirts have to match the lip and diffuser material?: They should, because the finish is continuous down the side of the car. Mixed grades are possible if you say so on the quote and the surfaces are prepared to match.
What is the lower lip listed separately?: A second-stage add-on that drops the skirt line further. Several vehicles have one; order it with the skirt from the same design so the two follow the same line.

Related categories

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Tell us the vehicle and your market

Quotes come back with kit content, material options and lead time. Tuning shops and distributors only — we do not sell to vehicle owners.

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