Dual Port Blow Off Valve for Mazda Mazdaspeed 3/6 and Subaru WRX Turbo Aluminum Billet High Flow

Mazdaspeed 3/6 Dual Port Blow Off Valve for WRX Subaru Turbo is a rugged, billet aluminium BOV built to enhance turbocharged performance across a range of Mazda and Subaru applications. Designed with a durable dual-port design, it provides efficient boost venting and reliable operation, helping prevent compressor surge and improving throttle response during shifts and peak boost conditions.

This high-flow valve is crafted from tough billet aluminium and is engineered to deliver consistent venting under demanding driving conditions. Its versatility is demonstrated by broad compatibility across multiple models, including Mazdaspeed 3/6, Mazda CX7 with turbo, and various Subaru turbocharged platforms. The Dual Port design helps tailor venting behavior to your setup, supporting steady boost control and improved driving feel.

Compatibility spans a wide range of engines and model years, including: Mazda CX7 2.3L Turbo (2006–2012), Mazdaspeed 3 (BK, 2007–2009; BL, 2010–2013, the latter requiring an aftermarket airbox), Mazdaspeed 6 (2005–2007), Subaru Forester XT (EJ25, 2008–2012), Subaru Liberty/Legacy GT (2003–2008), and Subaru WRX (2008–2014). This makes it a practical upgrade for enthusiasts looking to improve turbo response across multiple platforms without switching components for each vehicle.

The valve’s model name is BOV1175, and it comes with essential accessories to ensure a proper seal and fitment for most setups: a gasket and a blind cap are included in the package to support straightforward installation and leak-free operation. The unit is advertised with ISO9000 external testing certification and is manufactured in Mainland China.

Benefits & Tips

• Benefit: Enhanced throttle response and more precise boost control thanks to optimized dual-port venting.
• Tip: If you own a Mazdaspeed 3/6 running with an aftermarket intake or airbox, verify compatibility (BL 2010–2013 models may require aftermarket airbox adjustments).
• Tip: Use the included gasket and blind cap to ensure a clean, airtight seal during installation for consistent performance.

Product specifications

• Product type: Dual Port Blow Off Valve (BOV)
• Model Name: BOV1175
• Material: Billet aluminium
• Port configuration: Dual Port
• Application/Fitment: For Mazda CX7 2.3L Turbo (2006–2012); Mazdaspeed 3 (BK, 2007–2009); Mazdaspeed 3 (BL, 2010–2013, requires aftermarket airbox); Mazdaspeed 6 (2005–2007); Subaru Forester XT (EJ25, 2008–2012); Subaru Liberty/Legacy GT (2003–2008); Subaru WRX (2008–2014)
• No. of Cylinders: 4 Cylinder
• External Certification: ISO9000
• Origin: Mainland China
• Special features: Dual Port design for Mazdaspeed 3/6, WRX Subaru

Package includes:

• 1x blow off valve
• 1x gasket
• 1x blind cap

Warnings / reminders

Note: For Mazdaspeed 3/6 BL (2010–2013) models, installation may require an aftermarket airbox to accommodate the valve. Please confirm compatibility with your intake setup before purchasing.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

At intercyprus.com since 2002 — trusted for quality and reliability.