AUDI A4 B9 REAR DIFFUSER 16-18 CARBON FIBRE CF STYLE

• Genuine carbon fibre construction for lightweight strength
• Premium finish with a distinctive weave pattern
• Bolt-on fitment — no drilling or permanent modifications required
• Tailored specifically for S Line and S4 variants
• Sharper, more aggressive rear profile
• Catches light and detail from every angle

• 1 x Carbon Fibre Rear Diffuser for Audi A4 S Line S4 B9

• Audi A4 S Line B9 (2016–2018)
• Audi S4 B9 (2016–2018, including estate)

• Bolt-on fitment — no drilling or cutting required
• Fits S Line and S4 models only; will not fit standard A4 variants
• Professional installation recommended to ensure correct alignment and secure fastening
• Allow 1–2 hours for fitting; gather basic hand tools and locate fastening points on the existing rear bumper

Will this fit my Audi A4?
Yes, this diffuser is designed for 2016–2018 Audi A4 S Line and S4 B9 models (including estate variants). It will not fit the standard A4 — fitment is exclusive to S Line and S4 variants.

What is the diffuser made from?
It is constructed from genuine carbon fibre with a premium weave finish, ensuring both durability and a striking visual appearance.

Is professional fitting necessary?
Professional fitting is recommended to ensure proper alignment, correct fastening, and a flush fit with your rear bumper. Contact Project Styling on 07540331557 or sales@projectstyling.co.uk for fitting options in Southend-on-Sea.

How do I care for the carbon fibre finish?
Wash gently with warm soapy water and a soft cloth. Avoid harsh chemicals and high-pressure washers on the weave. A clear protective sealant can help maintain the finish long-term.