Perrin 2022+ Subaru WRX Diverter Valve - Red - PSP-TAC-616RD

No Leak Design. Unlike the OEM part, the PERRIN Diverter Valve uses a rubber seal between the piston and turbo, preventing leaks and sticking while eliminating seals that can wear out over time. It is 100% recirculating, ensuring accurate airflow readings in all driving conditions.

Enhanced Drivability. The PERRIN Diverter Valve provides a smoother boost release compared to the OEM part, which operates as a basic on/off switch for releasing boost pressure. This design enhances drivability and helps retain more boost in specific throttle positions, optimizing performance.

Two Spring Options. The PERRIN Diverter Valve includes two spring options, allowing you to fine-tune performance to match your specific driving style. Engineered to perform right out of the box, this upgrade delivers consistent results with no additional adjustments required.

What Does A Diverter Valve Do?. The primary role of a diverter valve is to maintain drivability and eliminate boost leaks. Many factory diverter valves have plastic seals and suboptimal designs that allow boost pressure to escape, reducing power and forcing the turbo to work harder.

Finish. The PERRIN Diverter Valve body features a red anodized finish for lasting good looks.

No Tuning Required. Increase horsepower and torque without ECU recalibration or tune! This part is designed and tested to work safely on your vehicle without any tuning required! However, more power can be gained with proper ECU tuning! Confirm any tune or recalibration you add is specific for ALL modifications added to the vehicle.