B9/B9.5 S4/S5 Engine Catch Can
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Description
B9/B9.5 S4/S5 Engine Catch Can Engineered to integrate seamlessly with factory PCV systems on B9 and B9.5 Audi S4/S5 platforms, this catch can traps oil vapors and moisture before they enter the intake —preserving fuel quality and reducing carbon buildup on valves. The compact under-strut-brace mounting design maintains OEM aesthetics. Direct bolt-on fitment requires no modifications to existing emissions equipment. Ideal for drivers seeking extended engine longevity and cleaner combustion without sacrificing stock reliability.