Perrin Turbo Sump Restrictor (PSP-ENG-628) | Subaru WRX 2015-2017 / WRX 2025

The Perrin Turbo Sump Restrictor reduces the chance of oil leakage from the turbo sump in FA20 WRX models. By controlling crankcase pressure and restricting excess airflow, it improves overall system reliability under spirited driving.

KEY FEATURES

• Reduces turbo sump oil leakage on FA20 WRX models
• Improves crankcase pressure control for consistent performance
• Simple inline installation with factory-style fittings
• Durable metal construction built for long-term reliability
• A preventative upgrade ideal for stock and lightly-modified WRXs

VEHICLE FITMENT

• Subaru WRX (2015–2017)
• Subaru WRX (2025)

Perrin products are engineered for precision Subaru performance and long-term reliability.