Perrin [15-21 WRX] Charge Pipe Neon Yellow | PSP-ITR-200NY Suspension Upgrades This product is designed for

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Perrin [15-21 WRX] Charge Pipe Neon Yellow | PSP-ITR-200NY Suspension Upgrades This product is designed forReplace the restrictive OEM plastic charge pipe and increase airflow and intercooler efficiency with the PERRIN Charge Pipe for WRX! The OEM charge pipe on the FA20 DIT engine is restrictive, narrows down in certain points, and has pleats that make for uneven airflow. The PERRIN Charge Pipe has a perfectly smooth interior, constant radii, and gradual bends, making for much more efficient air delivery. All of this combined creates for increased