Milltek's Non-Valved Resonated System adds a subtle increase in exhaust tone and performance and removes the "Sport" Mode setting from the exhaust, this allows the exhaust to sound the same regardless of Sport/Non-sport settings. The center resonators keep the system quieter but its still louder than stock making the RS4 sound the way it should. Unmatched fit and finish the perfect compliment to your RS4.
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