• 15+ Years of Performance Parts, Tuning & Installation

Perrin [02-07 WRX, 04-21 STI] Recirculating Blow off Valve Red | PSP-TAC-600

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PERRIN Recirculating Blow Off Valve

The PERRIN Recirculating Blow Off Valve (BOV) is designed to provide faster and more reliable boost pressure relief for modified Subaru WRX and STI models. If you’ve increased your vehicle’s boost, horsepower, or overall performance, this upgraded BOV responds quicker and more precisely than the OEM unit, protecting your turbo and improving throttle response.

Crafted from CNC-machined 6061 billet aluminum, the BOV body is machined from a single block, eliminating leak-prone bolt-on pieces. The cap, piston, and flange are also billet aluminum for maximum durability and precision.

An adjustable spring cap lets you fine-tune the release pressure independently of the blow-off volume. Loosening the cap provides a smoother, lighter boost release for mild setups, while tightening it suits higher boost pressures. Adjusting the volume controls how much air is vented, allowing you to prevent turbo damage from insufficient venting or poor throttle response from excessive venting.

Maintenance is simple—disassembly requires no special tools and the valve is easy to service when needed.

Key Features:

  • CNC-machined 6061 billet aluminum body, cap, piston, and flange

  • Adjustable spring cap for customizable boost release pressure

  • Independent adjustment of air release volume

  • Single-piece body design reduces potential leaks

  • Quick response to increased boost pressure from performance upgrades

  • Simple disassembly and low maintenance

What’s Included:

  • (1) PERRIN WRX Recirculating Blow Off Valve

  • (1) 1/4” vacuum hose

  • (1) 1/4”-to-1/4” hose connector

  • (1) Zip tie

Fitment:

  • Subaru WRX/STI models (typically fits 2002+ WRX and STI, verify specific compatibility)

Installation:
Difficulty: ★★☆☆☆
Time: Approximately 30–60 minutes
Tools Needed: Basic hand tools
Notes: Includes all necessary hardware and hoses for plug-and-play installation

Warranty:
Manufacturer Warranty

PROPOSITION 65 WARNING:
Cancer and Reproductive Harm
www.P65Warnings.ca.gov

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  • Backed by real-world installs
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Why Drivers Choose FAST of West Chester

  • I can't recommend this place enough. Being able to trust a shop in the performance world is big. The 2hr drive to get there, is worth knowing the job will be done right. Very happy to have found this shop, to
    support my builds going forward.

    Donald Wojnar

  • I recently had the pleasure of working with FAST of West Chester for some performance upgrades on my 2022 WRX, and the experience was nothing short of exceptional. I opted for a Borla S-Type exhaust and Cygnus Coilovers, and the team at FAST nailed the installation, fitment, and setup to a T.

    Adam Cranston

  • The team at FAST are excellence in every way. First, I consulted with Dave on mods for my HPDE track car. He listened and advised me on the best parts & mods to achieve my goals. He was patient & gave me space to research the options presented & worked with me through several changes before we built. Second, the build execution was flawless, proper heat shielding, bracing and poly everywhere. All components worked as advertised.

    Bryce Budd

  • This place has been my go to shop for all things Subaru. From simple service to performance parts and tuning, they have been top notch.

    William Brunell

  • Excellent shop. They installed a Cobb Stage 2 DP and Whiteline Sway bars and end links on my 2013 WRX. The work was done right and clean. The estimate was accurate. They were very knowledgeable, friendly and gave me the straight scoop on exactly what I was getting for the money
    and what I needed to get where I want to be with it. I'd recommend them
    to any car enthusiast.

    Devin Greco

Does it come with a warranty?

Most products we carry include a manufacturer warranty. Since we work with top performance brands, warranty coverage can vary by product. If you have questions about a specific item, reach out — we’re happy to help.

Do you offer installation help or advice?

Yes — we don’t just sell parts, we install and tune them too. FAST of West Chester is a real performance shop, and we’ve worked hands-on with many of the products we carry. If you have questions about fitment, installs, or building your setup, our team can point you in the right direction.

How fast is shipping?

Many of our products ship the same day or next business day, depending on availability. We work hard to get parts out fast so you can get your build moving without delays.

What’s your return policy?

Returns for exchange or refund are accepted within 30 days of receiving your order. Items must be in new, unused condition and in original packaging. If you have any questions, our team will help make the process easy.

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