GFB DV+ VTA Blow-Off Valve

The GFB T9451 VTA is a performance blow-off valve solution engineered for Audi, VW, Skoda, and SEAT vehicles equipped with an electronic factory diverter valve. This unit delivers an aggressive blow-off sound while enhancing performance through improved throttle response, boost recovery, and superior boost holding capabilities in demanding conditions. Adhering to the "Keep what works, replace what doesn't" philosophy, the VTA retains the factory ECU control and solenoid for optimal response time. The weak point of the original plastic valve mechanism is replaced with precision CNC machined billet metal components and a durable elastomer piston seal, ensuring lifetime durability. The VTA utilizes a patented pilot-operated design, repurposing the factory solenoid to control pressure behind the piston. This allows for shorter solenoid strokes, faster actuation, and progressive opening/closing based on boost pressure, which smooths boost transitions and reduces lag. Key features of the GFB T9451 VTA include TMS Technology for rapid boost recovery during gearshifts and throttle modulation, enhanced boost holding ability, and atmosphere venting for a distinct blow-off sound. It is a simple, direct bolt-on installation and is manufactured in Australia to ISO 9001 standards. Unlike BOV spacers that only add sound without addressing underlying issues, the VTA enhances both sound and performance. It also offers better value than kits that replace the factory solenoid, as the VTA effectively utilizes the existing solenoid for lightning-fast operation.