Perrin Hi-Power Cold Air Intake Wrinkle Black 2018-2021 STI

No Tuning Required! Increase horsepower and torque without ECU recalibration or tune! This part is designed to work safely on your vehicle without any tuning required! With our rigorous testing, you can be assured of proper operation and power gains! However, more power can be gained with proper ECU tuning! Be sure to confirm any tune or recalibration you add is specific for ALL modifications that have been added to the vehicle.

Precision Construction with Perrin intake! 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. Dryflow filters provide the same level of protection as an oiled filter, but require less maintenance, are less of a mess, and have no risk of over-oiling. The rigid screen inside and around the filter media helps prevent damage from debris and is ideal for dusty and rough driving conditions.

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. Sound During normal driving, the PERRIN intake sounds relatively stock. However, under load it really comes to life, unlocking the sound of your turbo flat-4. Once installed, the sound of your blowoff valve will be much more prominent, demanding attention and alerting people that your car is undeniably modified."