Mishimoto direct-fit baffled oil catch can for the 2018+ Audi B9 S4 and S5 with the 3.0T TFSI. It installs in line with the PCV system right after the factory separator, where a 2-port compact can with a 50-micron bronze filter and internal baffle captures the oil and fuel vapors that slip past the OEM AOS before they reach the intake valves. The kit includes direct-fit hoses, two Mishimoto one-way check valves to prevent the can from pressurizing, and a petcock drain for easy servicing. The billet 6061 aluminum can is sealed with Viton O-rings, and the kit is backed by the Mishimoto Lifetime Warranty.
| Type | 2-port compact baffled oil catch can (PCV side) |
| Material | Billet 6061 aluminum (Viton O-rings) |
| Separation | Internal baffle, 50-micron bronze filter |
| Includes | Direct-fit hoses, two check valves, petcock drain, hardware |
| Installation | Under 30 minutes |
| Warranty | Mishimoto Lifetime Warranty |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2019-2021 | Audi | S4 | Premium |
| 2018-2021 | Audi | S4 | Premium Plus |
| 2018-2021 | Audi | S4 | Prestige |
| 2019-2021 | Audi | S5 | Premium |
| 2018-2021 | Audi | S5 | Premium Plus |
| 2018-2021 | Audi | S5 | Prestige |
