The official Honda oil filter for the North American 9th‑generation Civic Si with the 1.5L turbocharged engine is Honda Genuine Part 15400-PLM-A01.
The 9th‑generation Civic Si uses a 1.5‑liter turbocharged engine, and oil filter part numbers can vary by market, revision, and production year. This article explains the standard North American part number and how to confirm the correct filter for your specific car.