Audi A5 S-Line / S5 B9 Coupe & Sedan Carbon Fiber Gloss Black Rear Bumper Diffuser 2017 - 2019

Upgrade the lower rear profile of your Audi A5 S-Line or S5 B9 with this genuine carbon fiber rear bumper diffuser, designed in a clean S5-inspired style and available for both the 2-door Coupe and 4-door Sedan body configurations. Manufactured to precise tolerances with a deep gloss black carbon fiber surface finish and UV-resistant coating, this rear diffuser adds a wider, more aggressive lower rear appearance that enhances the factory bumper styling of the A5 S-Line and S5 B9 platform. At 150cm wide, the diffuser delivers comprehensive lower rear bumper coverage for a more planted, performance-oriented rear stance. Excellent fitment accuracy ensures a clean, factory-quality installation result directly to the factory rear bumper.

Features:

• Genuine carbon fiber construction – manufactured to precise tolerances for consistent panel quality, high structural integrity, and a refined gloss black surface finish
• Deep gloss black carbon fiber surface finish – showcases the natural carbon weave and resists UV exposure, moisture, and road debris over sustained outdoor and driving use
• S5-inspired rear bumper diffuser profile – adds width and visual aggression to the lower A5 S-Line and S5 B9 factory rear bumper for a more planted and performance-oriented rear stance
• Compatible with both 2-door Coupe and 4-door Sedan body configurations
• Full-width 150cm coverage delivers comprehensive lower rear bumper upgrading for maximum visual impact

Specifications:

• Condition: 100% Brand New
• Type: Rear Bumper Diffuser
• Material: Genuine Carbon Fiber
• Surface Finish: Gloss Black Carbon Fiber
• Dimensions: 150 x 43 x 15 cm (59.06 x 16.93 x 5.91 in)
• Style: S5 Inspired Design
• Fitment: A5 S-Line / S5 B9 Factory Rear Bumper
• Body Styles: 2-Door Coupe · 4-Door Sedan
• Purpose: Retrofit / Upgrade

Fitment:

• Audi A5 S-Line B9 2-Door Coupe (2017–2019)
• Audi A5 S-Line B9 4-Door Sedan (2017–2019)
• Audi S5 B9 2-Door Coupe (2017–2019)
• Audi S5 B9 4-Door Sedan (2017–2019)
• Compatible with A5 S-Line and S5 B9 factory rear bumper only – not compatible with aftermarket or non-A5 B9 bumper configurations
• Confirm your specific body style (2-door Coupe or 4-door Sedan) and bumper configuration match before ordering

Contents:

• 1x Carbon Fiber Rear Bumper Diffuser
• Installation hardware included

Benefits:

• Genuine carbon fiber delivers an authentic carbon weave appearance and superior strength-to-weight ratio over carbon-look ABS or fiberglass alternatives
• Gloss black surface finish maintains a premium appearance over prolonged outdoor and driving exposure without fading or yellowing
• S5-inspired diffuser profile adds width and visual aggression to the lower rear of the A5 S-Line and S5 B9 for a more track-inspired and purposeful exterior stance
• Full-width 150cm coverage ensures comprehensive lower rear bumper coverage for a complete and finished rear end upgrade
• Compatible with both Coupe and Sedan body configurations – one product suits multiple A5 and S5 B9 body style variants

Installation Notes:

• Clean and degrease the factory rear bumper surface thoroughly before installation to ensure correct panel seating and secure fitment
• Compatible with A5 S-Line and S5 B9 factory rear bumper only – will not fit aftermarket rear bumpers or non-A5 B9 bumper configurations
• Confirm your specific body style (2-door Coupe or 4-door Sedan) matches before ordering
• Professional installation recommended for optimal diffuser positioning, panel alignment, and finish quality given the wide 150cm panel dimensions
• If unsure about compatibility with your specific A5 or S5 B9 variant or bumper configuration, contact our team with your year, model, and body style before ordering

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

Warranty:

• 12-month standard warranty from date of purchase
• Contact our support team for assistance with any issues