Active Valve Control (AVC) is designed to give you more control over the valve functions on your vehicle
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Upgrade your vehicles performance with the Milltek Large Bore Downpipe & Hi-Flow Cat. Milltek range of Hi-Flow Sports Cat Downpipes are manufactured using state of the art equipment and designed to imrpove gas flow and increase efficiency.


Fits both OE and MIlltek Cat Back Systems
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Enhance your Audi B9 S5's performance and sound with the Milltek 2.50" Non-Resonated Quad Outlet 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.


Non-Sport Diff Models ONLY



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Enhance your Audi B9 S5's performance and sound with the Milltek 2.50" Resonated Quad Outlet 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.


Non-Sport Diff Models ONLY



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