Perrin Cold Air Intake System Red with Foam Filter Subaru STI 2018-2021 2.5L EJ257

Add 15-30 WHP to your car! Actual horsepower values will vary depending on other installed hardware, tunes, and the overall condition of your vehicle.

This part is designed and tested to work safely on your stock vehicle (aftermarket catback and intercooler are also ok) without any ECU recalibrating required. If any other parts are installed beyond these listed, or you are using any Cobb AccesssPORT Off-The-Shelf (OTS) tunes, a custom ECU calibration specifically for our intake is REQUIRED.

California and several other states have adopted an emission standard for the regulation of road vehicles created by the California Air Resource Board (CARB). This standard must be met and approved for a system to become CARB certified. When a system becomes approved by meeting the criteria laid out by CARB, it receives a unique identifier known as an EO number and is certified for legal road use.

Only CARB Approved for 2008-2014 WRX 2008-2015 STI.

Our intakes are constructed from aluminum tubing, which is precision CNC mandrel bent, for consistent and perfectly fitting parts. Our MAF sensor bung is CNC machined for perfect fit and alignment of MAF sensor to intake. This is crucial for proper air fuel ratios and ECU engine management.

PERRIN Intake filter elements use open-cell foam to capture dust and dirt. Washable and reusable, PERRIN foam filter elements can last the life of your vehicle. Foam filter elements offer superior performance with minimal airflow restriction and amazing dust-holding capacity.

Remove months of oil and grime by spraying on this easy-to-use cleaner. Let it sit on the filter element for a few moments and rise in the sink. Once your filter is dry, spray on a fresh coat of oil and you are ready to go. The airflow straightener improves MAF readings by forcing incoming airflow into a uniform profile. Smooth and predictable airflow is the key to good, consistent MAF sensor readings for reliable horsepower gains.

Under everyday driving conditions, the PERRIN Cold Air Intake sounds nearly stock. However, when the engine is put to the test, the intake comes to life, unlocking the sound of your turbo flat-4 and blow-off valve.

Powder coated for protection against the elements, the glossy neon yellow or pink will accent your show car, while the textured red or black finish will look awesome for years to come!