Perrin Recirculating Blow Off Valve Red 2015-2021 WRX / 2014-2018 Forester XT | Adjustable Boost Control | Performance Blow Off Valve
Overview
The Perrin Recirculating Blow Off Valve (BOV) is a precision-engineered upgrade designed specifically for the 2015-2021 Subaru WRX and 2014-2018 Forester XT. It addresses a common limitation of the OEM blow off valve, which does not fully seal until around 3 psi of boost, resulting in lost horsepower and slower turbo response. This fully adjustable BOV ensures a proper seal and optimized venting, delivering faster boost response, consistent pressure, and improved overall drivability for Subaru enthusiasts seeking reliable turbo performance.
Built with a focus on balance and functionality, the Perrin BOV features carefully sized large inlets and outlets to relieve boost pressure efficiently without causing compressor surge—a risk for cars running higher boost levels or larger turbos. Unlike oversized blow off valves that can dump excessive boost and reduce throttle response, this design maintains the ideal flow rate to preserve turbo health and system responsiveness. The adjustable spring tension cap allows fine-tuning of venting pressure and air volume, giving drivers control over how and when the valve vents to suit their specific setup and driving style.
For Subaru owners, this means a more responsive turbo system that holds boost better during shifts, reduces turbo lag, and protects the turbocharger from damaging compressor surge. The Perrin Recirculating Blow Off Valve is a practical upgrade that enhances the driving experience by combining durability, adjustability, and platform-specific engineering tailored to the WRX and Forester XT.
Features & Specifications
This Perrin Recirculating Blow Off Valve is engineered for Subaru WRX and Forester XT platforms and features adjustable spring tension for customizable boost venting. Constructed from high-quality materials, it delivers precise boost control and improved turbo response for Subaru enthusiasts seeking enhanced performance and reliability.
-
Brand: Perrin Performance
-
Product: Recirculating Blow Off Valve Red
-
Part Number: PSP-TAC-615RD
-
Fitment: 2015-2021 Subaru WRX / 2014-2018 Subaru Forester XT
-
Material: High-grade aluminum
-
Finish: Red anodized
-
Construction: CNC machined
-
Origin: Made in USA
-
Adjustability: Spring tension and vent volume adjustable
-
Valve Type: Recirculating blow off valve
Key Benefits
-
Performance: Eliminates boost leaks below 3 psi for faster turbo spool and improved horsepower retention
-
Adjustability: Customizable spring tension and vent volume allow precise control over boost venting behavior
-
Durability: CNC machined aluminum construction ensures long-lasting reliability under high boost conditions
-
Turbo Protection: Proper venting prevents compressor surge, extending turbocharger life especially on larger turbos or higher boost setups
-
Fitment: Designed specifically for WRX and Forester XT models for direct bolt-on installation and optimal performance
-
Driveability: Maintains boost pressure during shifts for smoother throttle response and consistent power delivery
What's Included
- 1× Perrin Recirculating Blow Off Valve Red
- Mounting hardware
- Installation instructions
Installation & Compatibility
Installation of the Perrin Recirculating Blow Off Valve is generally straightforward for enthusiasts with basic mechanical skills and common hand tools. It replaces the OEM BOV with direct bolt-on fitment for the specified WRX and Forester XT models. No special modifications are required, but proper adjustment of the spring tension and vent volume is recommended to match your specific turbo setup and driving preferences. Tuning is not strictly required but recommended for optimal boost control and performance gains, especially on modified or higher-boost vehicles.
-
Professional Installation: Recommended for first-time installers or those unfamiliar with turbo systems
-
Modifications Required: None
-
Verify Compatibility: Confirm fitment for your specific model year and turbo setup before purchase
Shop with confidence at Subimods—your Subaru parts specialists.
