Mercedes-Benz AMG CLA C118 (2019+) Prepreg Dry Carbon Fiber Rear Air Duct

Designed for Mercedes-Benz AMG CLA C118 second-generation (2019+) owners, this Prepreg Dry Carbon Fiber Rear Air Duct simultaneously upgrades the aesthetics and airflow management of the rear bumper side cutouts. Manufactured in Europe to factory-spec tolerances and quality-controlled by BYC Performance, this CLA C118 carbon rear air duct fits OEM mounting points exactly — no cutting, drilling, or adhesives required.

Rear air ducts are positioned along the rear bumper side profile, redirecting turbulent air around the rear wheels and contributing to rear-axle airflow management. They also bring the CLA45 S AMG's DTM-inspired aero identity to the car. Prepreg carbon weave shows under a 2x2 twill pattern beneath a high-gloss UV-protective resin.

Key Features

• Prepreg (Dry) Carbon Technology: Autoclave-cured under high heat and pressure; a more consistent weave.
• AMG-Inspired Aero Detail: Matches the aggressive side-bumper identity of the CLA45 S AMG.
• Plug & Play Fit: Bolts directly to OEM mounting points and clip locations — no cutting.
• Left + Right Pair: Ships as a complete left + right pair.
• 2x2 Twill Carbon Weave: Authentic carbon look under high-gloss UV-protective resin.
• Race-Grade Strength: Very high strength for its weight, resists stone chips.
• UV & Chemical Protection: Long-life clear coat against fading and cracking.

Prepreg (Dry) Carbon vs. Wet Carbon

Most aftermarket carbon parts use wet lay-up — resin applied by hand, voids remain. Prepreg (dry) carbon is autoclave-cured under heat and pressure, offers a more consistent weave, a controlled resin ratio, and is noticeably lighter. The production method widely chosen in motorsport.

Vehicle Fitment

This CLA C118 rear air duct fits the following models:

• Mercedes-Benz CLA C118 Coupé Sedan (2019-2024)
• Mercedes-Benz CLA Shooting Brake X118 (2019+)
• Mercedes-AMG CLA35 / CLA45 / CLA45 S C118
• CLA200, CLA220, CLA250 (AMG-pack) trims

Important notes:

• This product is NOT compatible with the first-generation CLA C117 (2013-2019).
• There is a side-cutout geometry difference between non-AMG-pack and AMG-pack rear bumpers; please share a photo of your current bumper with our support team before ordering.

Technical Specifications

• Material: Prepreg Carbon Fiber (2x2 Twill Weave)
• Manufacturing: Autoclave Cure
• Finish: High-Gloss Clear UV-Protective Resin
• Kit Includes: Left + Right (pair)
• Origin: Europe

Installation Notes

Professional installation recommended:

1. Remove the OEM rear air duct trim from clips (partial rear bumper removal may be required).
2. Test-fit the carbon part for alignment.
3. Secure with 3M double-sided tape + clips.
4. Verify bumper alignment.

Care & Maintenance

Wash with pH-neutral shampoo, dry with a soft microfiber. Apply carbon sealant every 6 months.

FAQ

Compatible with CLA C117 (2013-2019)?
No. C117 and C118 are different generations with different rear bumper profiles.

Are left and right sold separately?
No, left + right are sold as a pair.

Compatible with non-AMG-pack CLA200?
Fits AMG-pack bumpers. Non-AMG-pack standard bumpers may have different side cutouts — contact support before ordering.

Compatible with X118 Shooting Brake?
Yes, the X118 wagon shares the same rear bumper side cutouts as the C118 sedan.

Will rain damage dry carbon?
No. Autoclave-cured carbon is waterproof.

Shipping time?
In-stock items ship within 1-3 business days.

Warranty?
BYC Performance offers a 12-month 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 Mercedes AMG carbon parts, CLA C118 carbon aero details, C63 W205 carbon add-ons, and many more high-quality components.