Replacement Air Filter

The K&N 33-5105 replacement air filter is engineered to enhance your vehicle's performance by improving airflow and trapping contaminants. Its state-of-the-art design utilizes layered, oiled cotton media, providing a noticeable increase in horsepower. This filter is washable and reusable, designed for the lifespan of your vehicle and backed by K&N's 10-Year/Million Mile Limited Warranty. For the Cadillac CT5, this filter fits Premium Luxury, V, and Sport trims from 2020-2024, and Luxury trims from 2020-2021. It also fits the Cadillac CT4 V Blackwing models from 2022-2024. Note: Some sources indicate that 2 filters may be required for certain applications, such as the 3.0L V6 CT5 and 3.6L V6 CT4 models. It is recommended to verify fitment for your specific vehicle year, make, model, and submodel.