PERRIN Front Mount Intercooler Boost Tube Kit Black Subaru WRX 2015-2021 | PSP-ITR-437-3BK Cold Air Intakes The built-in high-speed processor greatly

The built-in high-speed processor greatly improves throttle signal response time

Reuses OEM mounting hardware for factory-style installation

Does NOT fit AWD models (G37x / G35x)

STI text is available in the color of your selection

you're losing 30+lbs of weight just by swapping out the exhaust alone

PERRIN Front Mount Intercooler Boost Tube Kit Black Subaru WRX 2015-2021 | PSP-ITR-437-3BK Cold Air Intakes The built-in high-speed processor greatlyProduct Fitment: 2015 2021 Subaru WRX At the core of this kit are the PERRIN Boost Tubes, designed with the smoothest and shortest routing possible to ensure unrestricted airflow. With tubing diameters expanding from 2. 25 at the turbo to 2. 75 at the throttle body, the system supports airflow levels beyond what most turbochargers can producemaking it ideal for both upgraded and high performance builds. Constructed from lightweight CNC mandrel bent