Description
This oil catch can kit gives 18+ Audi B9 S4, S5 enthusiasts a direct way to separates oil vapor from crankcase gases before that contamination reaches the induction system.
Application benefit
For modified or direct-injected platforms, managing oil vapor can be a sensible part of a broader reliability-focused build. Applied to the 18+ Audi B9 S4, S5, the result is a better-matched supporting system for tuned street builds, canyon driving, autocross, roll-on acceleration, and track days.
Because this listing is specific to the 18+ Audi B9 S4, S5, it should be evaluated alongside the vehicle’s current cooling, airflow, power, tire, and track-use setup as applicable.
Who this is for
Best match: drivers planning long-term ownership of a modified engine. The upgrade is most worthwhile for a car that is driven often enough and hard enough for the factory component to become part of the build plan.