Audi A5 S line / S5 Rear Bumper Diffuser, Carbon Fiber, 2017–2019
Available in stock (20)
Carbon Fiber Rear Bumper Diffuser for Audi A5 S line and S5
Add a carbon-fiber accent to the rear bumper of your Audi A5 or S5. The source describes real carbon fiber with a glossy, double-layer UV-protected clear coating.
Listed fitment
- Audi A5 S line and S5, model years 2017, 2018 and 2019, according to the original product details.
- The listing does not specify coupe, Sportback or other body style. Confirm your exact vehicle and rear bumper configuration before ordering.
- Compare the diffuser outline and mounting points with the product photos.
Product details
- Material: real carbon fiber, as listed by the source.
- Finish: glossy surface with double-layer UV-protected clear coating.
- Installation hardware: self-tapping screws are listed as included.
- Exact dimensions and package piece count are not specified.
Installation notes
Test-fit the diffuser and confirm alignment before fastening. Self-tapping screws may require drilling; a no-drill installation is not guaranteed. Professional installation is recommended.
Before ordering
Confirm the model year, trim, body style and rear bumper shape against your vehicle. The source does not provide test data confirming changes to downforce, drag, stability or fuel economy.
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Stephanie L.
Ordered the BMW front bumper fog light grille and the fitment was absolutely perfect. Gloss black finish looks factory-fresh and the quality is outstanding. Installation took about 30 minutes — no drilling required. Highly recommend AlchemyRide!
Marcus R.
Fast shipping, great packaging, and the part arrived in perfect condition. The grille fits my F23 like a glove — exactly as described. Customer service was also super responsive when I had a fitment question. Will definitely order again.
David K.
I've bought aftermarket parts from many stores but AlchemyRide stands out for quality and value. The part was well-made, fit perfectly, and the price was very competitive. My BMW looks aggressive and clean — exactly what I wanted.
Jenny T.
Excellent product and super easy to install. The gloss black finish matches my M Sport bumpers perfectly. Shipping was faster than expected and the part was well-packaged. Very happy with my purchase — my car looks completely transformed!