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S” for superpower: 425 HP and 550 Nm whet the appetite in the Audi S4 Avant - Audi Tuning, VW Tuning, Chiptuning von ABT Sportsline.
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AUDI B9/9.5 S4 & S5 Stratified ProTune [B9_S4S5_ProTune] - $375.00USD : Stratified Automotive Controls
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