Turbosmart Kompact EM Diverter Valve (Blow-Off Valve) – Toyota GR Yaris Gen 1 (2020–2024)

An upgraded diverter valve (blow-off valve) for the Toyota GR Yaris Gen 1 — the Turbosmart Kompact EM PlumBack is a direct plug-and-play replacement for the OEM valve, delivering faster boost response, improved turbo spool, and greater reliability under repeated hard use.

The OEM diverter valve on the G16E-GTS is a known weak point under sustained boost, particularly after an ECU map. This is the most popular direct upgrade — it fits without cutting or fabrication, uses the original wiring connector, and is ready to use straight from the box.

Key features

• Direct OEM plug-and-play replacement — no cutting or fabrication
• Plumb-back (recirculating) design — emissions legal for road use
• Faster boost response and improved throttle feel
• Compatible with standard and mapped G16E-GTS engines
• Turbosmart billet aluminium construction
• Retains OEM wiring connector (EM = Electronic Match)

Fitment

• Make: Toyota
• Model: GR Yaris
• Generation: Gen 1
• Engine: G16E-GTS 1.6T
• Year range: 2020–2024
• Variants: All

What's included

• 1x Turbosmart Kompact EM PlumBack diverter valve
• Fitting hardware and instructions

Installation

Difficulty: DIY friendly. Plug-and-play replacement — no specialist tools required. Approximately 30 minutes.