NEW ECS B9 S4 3.0T Valved Exhaust System
Enjoy your B9 S4 with the most engaging, race-inspired, performance-valved exhaust system. Intoxicating exhaust notes fuel your desire to push your engine to its limits with every ounce of power and every engine revolution. Experience your driving passion with our ECS Valved Exhaust System and control your sound with our valved muffler design.
Make Some Noise
B9 S4 3.0T
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