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🔥 OEM+ Fitment | S Line Compatible | Real Carbon Fiber Construction
Elevate your B9.5 A4/S4 (S Line) with this aggressive S4-style diffuser, featuring:
✔️ Perfect Fit for 2020-2024 A4/S4 B9.5 (S Line bumpers)
✔️ Authentic 2×2 Twill Carbon Fiber – UV-resistant epoxy coating
✔️ Integrated Quad Exhaust Outlets – Complete OEM+ look
✔️ Direct Replacement Design – No bumper modification
✅ Precision S Line Fitment – Seamless integration
✅ Dry Carbon Fiber Option Available (+$199)
✅ Pre-Drilled for Parking Sensors
✅ Includes High-Strength Mounting Tape
❗ For B9.5 S Line Models ONLY – Verify your trim
❗ Professional Installation Recommended
❗ 72-Hour Adhesive Cure Time
• OEM Mounting Points + Adhesive – Ultra-secure hold
• Surface Prep Kit Included (Alcohol wipes + microfiber)
• Laser-Measured Alignment – Perfect gaps guaranteed
📦 Ships in 24hrs
🚚 Free Express US Shipping
💡 Video Installation Guide Available
Send us your bumper photos – we'll confirm compatibility instantly
✓ 2023 Redesigned Version – Improved S Line compatibility
✓ Aerodynamically Tuned – Reduced rear lift by 12%*
✓ 2-Year Delamination Warranty
✓ Used by 1,200+ B9.5 Owners
Upgrade your S Line A4/S4 with show-quality carbon fiber today!
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$666.00
The rear diffuser is very nice looking and very thick but it has no play whatsoever and does not fit my bumper . I had to screw it in with many screws and it still does not fit
i just order rear diffsuer for my car ,i think i will order grill next month
thx good service ,fit prefect
Selling fast!
Get yours while you can.
Perfect fit
Was a little difficult to put on but got it on didn’t even know it came with exhaust tips great value most definitely recommend
Excellent will do business with again
Part came in as described and the quality was actually pretty good for being an aftermarket non oem part. Would highly recommend if you are just trying to see if you like it or not and it is sturdy
I encountered some difficulties in my own installation, but it went smoothly. It looks good. happy