Perrin Diverter Valve for the GR Corolla 2023+

Unlike the factory part, the PERRIN Diverter Valve for GR Corolla 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.

The PERRIN Diverter Valve delivers a smoother boost release compared to the GR Corolla's factory 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.

The primary role of a diverter valve is to maintain drivability and eliminate boost leaks. Many factory diverter valves use plastic seals and suboptimal designs that allow boost pressure to escape, reducing power and forcing the turbo to work harder.

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

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.