H&R | Sport Spring - Audi B9 A4/S4MFG# 50357 The most popular spring in H&R's line up, Sport Springs will lower your vehicle for a lower center of gravity, improved handling and a more aggressive appearance. Sport springs feature more control than that of the OE Sport spring, but is still comfortable for daily use. Sport springs are an excellent choice for street and occasional track use. These springs are fully compatible with cars fitted with Audi's switchable ACC (Adjustable
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