Cobb Subaru SF Intake System - 2015-2021 Subaru WRX Drivetrain the exhaust will not flow

the exhaust will not flow smoothly

so you will never need another filter for your factory airbox again

For the best results

consistent oil flow

more consistent spark under heavy load

Cobb Subaru SF Intake System - 2015-2021 Subaru WRX Drivetrain the exhaust will not flowThe COBB Subaru SF Intake System is designed to improve airflow, increase induction sound, and remove a key pre turbo restriction from the factory intake system on the 20152021 Subaru WRX. Built with performance and drivability in mind, the SF Intake uses a CFD designed velocity stack, integrated airflow straighteners, and a custom conical cloth air filter to help deliver smooth, consistent airflow across the MAF sensor. Unlike basic intake designs,