Turbosmart TS-0205-1316 Supersonic BOV Black Subaru WRX 2002-2007 STI 2004-2021

Vehicle Fitment

• 2002-2007 Subaru Impreza WRX (EJ205, 2.0L Turbo)
• 2006-2007 Subaru Impreza WRX (EJ255, 2.5L Turbo)
• 2004-2007 Subaru Impreza WRX STI (EJ257, 2.5L Turbo)
• 2008-2014 Subaru Impreza WRX STI (EJ257, 2.5L Turbo)
• 2015-2021 Subaru WRX STI (EJ257, 2.5L Turbo)
• 2006-2007 Subaru Forester XT (EJ255, 2.5L Turbo)

Fitment Notes

• Vehicle-specific fitment - uses the factory OEM BOV mounting location; no custom fabrication required
• Configured as VTA (Vent to Atmosphere / Supersonic) - fully atmospheric, not recirculating
• For a recirculating (Plumb Back) configuration on the same fitment, refer to the Turbosmart Plumb Back Subaru Black
• For a Dual Port (staged VTA + recirculating) configuration, refer to the Turbosmart Dual Port Subaru Black (TS-0205-1016)
• Not CARB legal - not for sale or use in California on pollution-controlled vehicles

Features

• 38mm positive-seal piston delivers high flow and the distinctive Turbosmart "Supersonic" VTA sound preferred by street tuners and racers
• Boost-Balance Technology - the more boost fed into the valve, the tighter it seals; sealing force scales with boost pressure to eliminate leaks at any boost level
• Positive seal O-ring on the piston face provides an additional leak-free seal against the valve body at all times under boost
• Tool-free spring adjustment via the rotating cap for quick tuning of cracking pressure to suit vacuum level and spring rating
• Full VTA (Vent to Atmosphere) configuration produces maximum atmospheric sound on every throttle lift
• Billet aluminium construction throughout - lightweight, durable, and hand-assembled in Sydney, Australia
• Direct OEM-location fitment for straightforward installation without custom intake piping modifications

Specifications

• Part Type: Blow-Off Valve (BOV) - VTA (Vent to Atmosphere / Supersonic)
• Piston Diameter: 38mm
• Configuration: Supersonic (fully atmospheric)
• Spring Installed: Yellow spring (rated -22 to -20 inHg)
• Adjustment: Tool-free rotating cap
• Body Material: Billet aluminium
• Finish/Color: Black anodized
• Fitment Type: Vehicle-specific (Subaru WRX/STI/Forester XT)
• Origin: Manufactured in Sydney, Australia

Included Components

• 1x BOV5 Supersonic Blow-Off Valve (Black)
• 1x Gasket
• 1x Yellow Spring (-22 to -20 inHg, installed)
• 1x Hose Blanking Plug
• 1x Breather Cross-Over Hose and Fittings
• 1x Turbosmart Decal

Product Description

The Turbosmart Supersonic BOV Subaru Black (TS-0205-1316) is the go-to VTA blow-off valve for WRX, STI, and Forester XT owners who want maximum atmospheric performance and Turbosmart's signature Supersonic sound. Built around the proven BOV5 platform with a 38mm positive-seal piston and Boost-Balance Technology, this valve provides a leak-free seal at any boost level - the higher the boost pressure, the tighter the piston locks against the seat. On throttle lift, it vents fully to atmosphere for a sharp, aggressive sound with every shift.

Installation is direct onto the factory OEM BOV location with the included gasket, requiring no custom piping modifications. The rotating cap enables tool-free spring adjustment to dial in cracking pressure for the vehicle's specific vacuum and boost level. The yellow spring installed suits the standard Subaru vacuum range; additional spring options are available separately for different boost setups. For those who prefer recirculating-only operation, the Plumb Back Subaru variant is available, and for a staged dual-port setup combining both atmospheric and recirculating venting, the Dual Port Subaru Black (TS-0205-1016) is the correct choice.