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The Bilstein B12 Sportline suspension kit for 2009 Audi A4 (Base) pairs Bilstein B8 Performance Plus dampers with Eibach Sportline springs in a complete front-and-rear package to achieve aggressive lowering around 30–60mm. Tuned for the vehicle, the kit targets more direct response and dynamic handling while maintaining predictable control and providing a sportier, lowered appearance through progressive spring characteristics.
Bilstein B12 2009 Audi A4 Base Front and Rear Suspension Kit
