OVERVIEW

If you want sound with your performance, the Go Fast Bits (GFB) VTA (Vent-To-Atmosphere) Blow Off Valve delivers! Specifically engineered for the G16E-GTS 1.6L turbocharged engine found in the Toyota GR Corolla and GR Yaris, the T9489 VTA combines aggressive atmospheric venting with the proven performance benefits of GFB's ground-breaking pilot-actuated valve architecture. By replacing the weak factory plastic diverter valve mechanism with precision CNC-machined billet aluminum and brass components, the GFB VTA eliminates boost leaks under high pressure, holding reliably up to 50 psi while delivering faster boost recovery and sharper throttle response during gear shifts.

FEATURES

• Aggressive VTA Blow-Off Sound: Vents excess boost directly to atmosphere upon throttle lift-off to deliver that signature, crisp rally blow-off sound.
• Patented Pilot Actuation System: Re-purposes the factory electronic solenoid to control internal valve pressure rather than the piston itself, enabling faster opening and closing speeds than standard OEM or aftermarket valves.
• Superior Boost Holding (Up to 50 PSI): Replaces the prone-to-leak molded plastic OEM valve mechanism with CNC-machined billet aluminum, a precision brass piston, and a Viton face seal.
• Sharper Throttle Response & TMS Technology: GFB's Turbo Management System (TMS) allows progressive valve actuation to smooth out boost transitions during throttle modulation and reduce turbo lag between gear changes.
• Low-Profile Integrated Solenoid: Direct plug-and-play installation retaining full factory ECU solenoid integration without requiring ECU tuning, BOV adapters, or wiring modifications.
• Australian Made with Lifetime Warranty: Precision manufactured in Australia under ISO 9001 standards and backed by GFB's limited lifetime warranty.

SPECIFICATIONS

• Valve Type: Vent-To-Atmosphere (VTA) Electronic Pilot-Actuated Diverter Upgrade
• Body Material: CNC-Machined 6061-T6 Billet Aluminum
• Piston / Seal Material: Precision Brass Piston with High-Temp Viton Face Seal
• Boost Pressure Rating: Tested & Sealed Up to 50+ PSI

WHAT IS INCLUDED

• 1x GFB T9489 VTA Blow Off Valve Assembly with Integrated Solenoid
• 1x Precision Internal Spring & Pilot Valve Kit
• 1x Complete Direct Bolt-On Mounting Hardware Kit
• 1x Step-by-Step Detailed Installation Guide

PART NUMBER

• T9489

FITMENT

• 2023+ Toyota GR Corolla 
• 2021+ Toyota GR Yaris 
  
  Note: Compatible with stock or heavily tuned vehicles running elevated boost pressure levels. Direct bolt-on replacement for factory electronic diverter valve. Retains OEM wiring connector.