ECS Tuning Shop

Upgrade your exterior styling with the ECS Tuning Carbon Fiber Rear Diffuser. This diffuser was engineered and designed in-house to add a more aggressive appearance to the rear of your vehicle that matches with the factory appeal of the Pre-Facelift B8 A4 & S4. The diffuser is crafted of high quality hand laid carbon fiber to achieve it's world class appearance and durability and provides an aggressive and sporty style that's sure to set your vehicle apart from the rest. Installs with no drilling, cutting, or modification of any kind required. Simply remove your currently installed valance and install the diffuser using the factory mounting locations and hardware.   To compliment the look of your new diffuser, check out the ECS Carbon Fiber Trunk Spoiler and Side Blades, only available from ECS Tuning. This Part Fits the Following Vehicles Make Model Submodel Engine Audi B8 A4 FWD 2.0T Audi B8 A4 Quattro 2.0T Audi B8 A4 Quattro V6 3.2L Audi B8 A4 FWD 2.0T Audi B8 A4 Quattro 2.0T Audi B8 A4 Quattro V6 3.2L Audi B8 S4 Quattro 3.0T *The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.

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