Mercedes-AMG GT 63 X290 4-Door (2018-2024) Prepreg Dry Carbon Fiber Side Skirt

Engineered for Mercedes-AMG GT 4-Door X290 (2018-2024) owners, this Prepreg Dry Carbon Fiber Side Skirt set lowers the visual side profile of the fastback for an aggressive stance. Manufactured in Europe and quality-controlled by BYC Performance, this pair bonds directly to the OEM rocker panel geometry.

If your AMG GT 4-Door build needs a stronger side profile, this dry carbon side skirt set is the answer. Autoclave-cured prepreg construction resists road debris and is UV-stable.

Key Features

• Prepreg Dry Carbon Technology: Autoclave-cured under high heat and pressure, a more consistent weave.
• Lowered Side Profile: Drops the visual stance and accentuates the fastback line.
• Pair Set: Left + right side skirts included.
• 2x2 Twill Carbon Weave: Authentic pattern under UV-protective clear coat.
• High Strength: Very high strength for its weight — resists splashes and light contact.
• 3M VHB Tape + Bolt Mounting: Dual-secure fixation.
• Direct OEM Fit: X290 (2018-2024) rocker panel geometry.

Prepreg Dry Carbon vs. Wet Carbon — Which Is Better?

Most aftermarket carbon parts use wet lay-up. Prepreg (dry) carbon:

• Autoclave-cured → a more consistent weave
• A controlled resin ratio → lighter, stronger
• The production method widely chosen in motorsport
• Minimal UV fading

Vehicle Fitment

This X290 carbon side skirt fits:

• Mercedes-AMG GT 53 4MATIC+ X290 (2018-2024)
• Mercedes-AMG GT 63 4MATIC+ X290 (2018-2024)
• Mercedes-AMG GT 63 S 4MATIC+ X290 (2018-2024)
• Mercedes-AMG GT 63 S E PERFORMANCE X290 (2022-2024)

Important notes:

• NOT compatible with C190 AMG GT (2-door sports car).
• The skirt sits low to the ground — avoid contact with speed bumps and high curbs.

Technical Specifications

• Material: Prepreg Carbon Fiber (2x2 Twill Weave)
• Manufacturing: Autoclave Cure
• Finish: High-Gloss Clear UV-Protective Resin
• Color: Natural carbon weave black
• Origin: Europe

Installation Notes

1. Clean and dry the rocker panel surface with isopropyl alcohol.
2. Test-fit the skirt; ensure smooth transition into the front and rear bumper lines.
3. Peel 3M protective film progressively, press the skirt onto the surface.
4. Secure bolts at marked points on the rocker support area to the manufacturer's recommended torque.
5. Avoid car washes for 24 hours.

Care & Maintenance

Wash with pH-neutral car shampoo. Apply carbon-safe sealant every 6 months. Keep pressure-washer nozzle 30 cm from surface.

FAQ

Fits C190 GT sports car?
No.

GT 53 / 63 / 63 S differences?
None — same X290 rocker geometry.

Will speed bumps damage it?
The skirt sits low; hard contact can cause damage. Carbon fiber is durable but direct impacts may wear it.

Both tape and bolts needed?
Recommended for maximum security.

Can it be painted?
Yes, but carbon weave will be hidden.

Shipping?
In-stock items ship within 1-3 business days via partner couriers.

Warranty?
12-month BYC manufacturer warranty.

Why BYC Performance?

BYC Performance is a Turkey-based performance tuning specialist sourcing premium carbon fiber parts from leading European manufacturers. Our catalog includes AMG GT carbon side skirts, X290 carbon parts, BMW M carbon side skirts, Porsche carbon parts, and many more.