Enhance your Audi S4's performance and sound with the Milltek 2.25" Non-Resonated Cat-Back Exhaust System. Crafted from premium 304L stainless steel, this system offers a direct replacement for the stock exhaust, delivering improved exhaust flow and an aggressive tone. View More
Enhance your Audi S4's performance and sound with the Milltek 2.25" Non-Resonated Cat-Back Exhaust System. Crafted from premium 304L stainless steel, this system offers a direct replacement for the stock exhaust, delivering improved exhaust flow and an aggressive tone.
Enhance your Audi S4's performance and sound with the Milltek 2.50" Resonated Cat-Back Exhaust System. Crafted from premium 304L stainless steel, this system offers a direct replacement for the stock exhaust, delivering improved exhaust flow and an aggressive tone. View More
Enhance your Audi S4's performance and sound with the Milltek 2.50" Resonated Cat-Back Exhaust System. Crafted from premium 304L stainless steel, this system offers a direct replacement for the stock exhaust, delivering improved exhaust flow and an aggressive tone.
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Part# SSXAU048