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Boca Design Rear Diffuser for Audi S4 (2017+, B9)

SKU 042-11111000

Needless to say, an Audi RS4 Sedan would compete head to head with the BMW M3 and the Mercedes-AMG C63 / C63 S so it would make perfect sense to see this styling come to reality. With the best downforce on highspeed, ground effect diffuser must be the good choice for you

- Weave 3K Twill Carbon Fiber Finishing- High Gloss UV Protected non-Yellowing Clear Coat Construction- Pure Carbon Fibre by AutoClave Dry Carbon with one piece forming


  • 1 x Boca Design Carbon Fibre (twill weave, pre-preg) Rear Diffuser


  • Audi S4 (2017+, B9)