A'PEXi - Power Intake Panel Filter - 2008-2014 Subaru Impreza WRX / STI [GR]

Power Intake: Performance Meets Protection

Many performance air filters promise power gains but fail to mention their poor filtration capabilities—leaving your engine vulnerable to dust, dirt, and premature wear. At A’PEXi, we take a different approach.

The Power Intake filter element is designed to maximize airflow while maintaining superior filtration, ensuring engine protection without sacrificing performance. Expanding its versatility, we now offer the Power Intake as a factory-replacement drop-in filter, delivering high-performance filtration for your daily driver.

Why Choose the A'PEXi Power Intake?

- Optimized Airflow & Filtration – Progressive-density filter element increases efficiency without compromising dust and dirt filtration.
- Dry-Type Filter – Requires no oiling, preventing issues like fouled airflow sensors.
- Reliable & Maintenance-Free – Eliminates common wet-filter problems such as oil buildup and idle instability.
- Long-Lasting Performance – Tested for 25,000 km (15,000 mi) under normal street driving conditions.
- Quick & Easy Installation – Factory replacement filter installs in minutes with no modifications required.
- Simple Cleaning & Maintenance – Just blow compressed air through the filter in the opposite direction of airflow—no water, solvents, or oils needed.

Ideal for:

• Lightly tuned vehicles seeking improved throttle response and efficiency

• Vehicles experiencing idle and throttle issues with aftermarket intake setups

• Daily drivers in need of better airflow and filtration without costly modifications

Experience pure performance with uncompromised protection—Power Intake is engineered for enthusiasts who demand the best of both worlds.

Bolt-On	Yes
Part Number	503-F101
Year	2008, 2009, 2010, 2012, 2013, 2014
Make	Subaru
Model	Impreza WRX, Impreza WRX STI
Body Style	All
Engine	EJ25, EJ20
Intake Type	Power Intake Panel
Intake Length	220mm (8.66 in)
Intake Width	217mm (8.54 in)
Intake Height	33mm (1.30 in)
OEM P/N Cross Reference	Subaru- 16546-AA120
Special Notes	Package Dimension: 12"x9"x3", Package Weight: 1 lbs.
	WARNING: California Prop 65 Cancer & Reproductive Harm  www.p65warnings.ca.gov