PERRIN Performance Charge Pipe - 2015-2021 WRX Select Finish:Wrinkle Red Pipe This intercooler has over 80%

This intercooler has over 80% more internal flow area than its stock counterpart

the Mach 2 can help return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears

• Braided Nylon line won't scratch finishes

Part Number: Fitment: Previous PN: STM-CT9-EXSS-JDM JDM Evo 9 Rear Bumper STM-EVO79-EX-SS-JDM STM-CT9-EXSS-USDM USDM Evo 8/9 and JDM Evo 7/8 Rear Bumpers STM-EVO79-EX-SS-USDM

Boost fuel pressure is assumed to be the base pressure of 43 PSI + boost pressure

PERRIN Performance Charge Pipe - 2015-2021 WRX Select Finish:Wrinkle Red Pipe This intercooler has over 80%Replace the restrictive OEM plastic charge pipe and increase airflow and intercooler efficiency with the PERRIN Charge Pipe for 2015 17 WRX! Fits these Applications: 2015 2021 Subaru WRX BETTER AIRFLOW OVER STOCK 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