MST Performance Cold Air Intake SystemThe ADA405 is a performance engineered cold air intake tailored specifically for the B9 Audi A4 and A5 Quattro with 2. 0 TFSI engines. It replaces the restrictive factory airbox with a refined setupincluding a powder coated heat shield, high flow silicone inlet hose, and a reusable dry cone filter. This kit delivers cooler, denser air to the turbocharger, resulting in improved throttle response, reduced turbo lag, and a richer induction sound without
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