Audi S4 / S5 B9 Mishimoto Baffled Oil Catch Can

This Mishimoto baffled oil catch can for the Audi S4 B9 and S5 B9 will improve the long-term efficiency of the 3.0 TFSI engine's intake system by collecting and filtering, with a bronze filter, the oil and gasoline residues that are initially fed back into the intake system due to emission regulations. Fitting without any modification, this complete system will keep the intake and forced induction system clean and efficient regardless of use or power !