The rear end of the B9 A5 and S5 deserves the same attention as the front. This Prepreg Dry Carbon Fiber Rear Diffuser is designed to give your A5 S-Line or S5 Sportback a sharper, more aggressive finish while maintaining a refined OEM+ look.

Precision 3D-designed and CNC molded for accurate fitment, this diffuser follows the factory bumper lines for a seamless upgrade. Constructed using advanced prepreg dry carbon and autoclave curing, it delivers exceptional strength while remaining lightweight. The 3K twill weave is finished in a deep high-gloss clear coat that enhances the carbon pattern and provides long-term UV protection.

Whether you're replacing a damaged diffuser or completing a full carbon aero setup, this piece adds depth, contrast, and a true performance-inspired presence to the rear profile.

Features:

• Prepreg dry carbon fiber construction
• Autoclave cured for superior durability and lightweight performance
• Precision 3D-molded for factory-style fitment
• 3K twill weave carbon finish
• High-gloss UV-resistant clear coat
• Enhances rear-end aggression and sporty appearance

Content:

• 1x Rear diffuser
• Mounting hardware included (adhesive tape & screws)

Fitment:

• 2017-2019 Audi A5 S-Line B9 Sportback
• 2017-2019 Audi S5 B9 Sportback

Specifications:

• Material: Prepreg Dry Carbon Fiber
• Weave: 3K Twill
• Finish: High-Gloss Clear Coat
• Position: Rear Bumper
• Installation: Tape & Screw Mount
• Condition: Brand New
• Warranty: 1 Year

Shipping Information:

• Processing Time: 2-5 business days for warehouse stock items
• Made-to-Order: Please allow 2-4 weeks for shipping if product requires custom manufacturing

Clean from a distance. Aggressive up close. This carbon rear diffuser gives your B9 Sportback the finished, performance-driven look that separates a stock rear end from a fully dialed build.