Description
RacingLine Diverter Valve Upgrade VAG 2.0 2.5 4.0 TSI TFSI 2003 2012 audi s3 esr4049052 Koolstofvezel luchtkanaal Koolstofvezel luchtkanaal Surface finish: Hard Anodized that factory diaphragm can deform over time This construction is made to deliver consistent boost control