Perrin PSP-TAC-600BK Black Recirc Blow-Off Valve for 02-07 WRX/04-21 STI

Vehicle Fitment

• 2002-2007 Subaru Impreza WRX AWD
• 2004-2021 Subaru WRX STI AWD

Features

• CNC-machined 6061 billet aluminum body, flange, piston, and cap
• Black anodized finish for durability and stealth aesthetic
• Recirculating design maintains air-fuel ratio and prevents AFR issues
• Adjustable spring tension for on-the-fly boost release tuning
• Flow control via flange venting adjustment to prevent compressor surge
• Large 1.225" inlet/outlet ports for optimal airflow at high boost
• Low-maintenance O-ring seals - simple disassembly with included hex keys
• Pre-set for WRX/STI bolt-on installation - no tuning required

Specifications

• Material: 6061-T6 billet aluminum
• Finish: Black anodized (body and cap)
• Inlet/Outlet ID: 1.225"
• Design: Recirculating (stock-style air return)
• Adjustable: Relief spring pressure & flow venting
• Carb Status: Not CARB legal (CA restricted) :contentReference[oaicite:7]{index=7}

Included Components

• 1x Perrin PSP-TAC-600BK blow-off valve
• 1x 24" vacuum hose
• 1x 12" vacuum hose
• 2x M8 socket cap screws
• 1x ¼" straight hose connector
• 1x ½" straight hose connector
• 1x ½" T-piece hose connector
• 1x M6 hex key
• 1x 1/8" hex key
• 1x 1/16" hex key
• Instructions & warranty information

Product Description

Elevate your turbo performance with the Perrin PSP-TAC-600BK black recirculating blow-off valve, designed for Subaru WRX (2002-2007) and WRX STI (2004-2021). Its CNC-machined 6061 billet aluminum construction ensures unmatched durability and polished style, while the large 1.225" ports and adjustable spring tension provide fast, tuneable boost release without compressor surge.

This recirc-type valve vents back into the intake system to preserve air-fuel mixture and throttle response - critical for MAF-equipped turbo Subarus. With no tuning required and intuitive flow adjustment built into the flange, installation is straightforward. Keep your boost spooling cleanly, perform flawlessly under demanding conditions, and maintain OEM drivability - all while rocking a low-profile black finish.