A'PEXi Power Intake Panel Air Filter - Subaru Impreza WRX (2015-2021) WRX / STI (2015-2018)

A'PEXi Power Intake Panel Air Filter - Subaru Impreza WRX (2015-2021) WRX / STI (2015-2018)

- Improves intake efficiency

- Dry-type air filter

- Improves throttle response and intake efficiency

- Progressive-density filter media for maximum airflow and filtration

- Direct OEM replacement

- Made in Japan

- A'PEXi part no. 503-F101

Compatible with 2015-2021 Subaru Impreza WRX and 2015-2018 WRX / STI with EJ25 and FA20DIT engines.

Also fits: 15-21 WRX (2.0L), 15-18 WRX / STI (2.5L), 13+ Crosstrek, 05-14 Outback, 05-14 Legacy, 09-13 Forester, 14-19 Forester (2.0/2.5), Impreza 07-14.

The A'PEXi Power Intake Panel Filter is a premium factory replacement air filter designed to increase airflow while maintaining excellent engine protection. Unlike many aftermarket filters that prioritize airflow at the expense of filtration, A'PEXi's progressive-density filter media delivers improved intake efficiency without allowing harmful dust and debris to reach the engine.

Its dry-type construction requires no oil, eliminating the risk of contaminating mass airflow sensors or causing idle instability commonly associated with oiled filters. This makes it a reliable, low-maintenance upgrade for both daily-driven and lightly modified vehicles.

Designed as a direct replacement for the factory air filter, installation takes only a few minutes with no modifications required. The filter is serviceable using compressed air and is engineered to provide long-lasting performance under normal driving conditions.

OEM Cross Reference: Subaru - 16546-AA120

For more information visit https://www.apexi-usa.com/