Already running a Milltek Sport or OEM OPF/GPF Back System on your Toyota GR Yaris Gen 2? Upgrade to the full Valved Straight Pipe experience without replacing your entire exhaust with this dedicated Upgrade Kit. Designed to convert your existing OPF-Back system into a full electronically controlled valved straight pipe setup, this kit is the cost-effective route to the ultimate GR Yaris exhaust sound.
The upgrade kit includes the electronically controlled valve components that integrate directly with the GR Yaris Gen 2's CAN bus system, giving you on-demand control over your exhaust note. Open the valves for a dramatic, unrestricted straight-pipe sound; close them to keep things civilised when the situation demands.
Manufactured from 304L aircraft-grade stainless steel in the UK, this kit is designed to integrate seamlessly with compatible Milltek and OEM exhaust back sections. A cost-effective and practical upgrade for those who want the valved system experience without starting from scratch.
Fitment: Toyota GR Yaris Gen 2 – 1.6T OPF/GPF Models (2024 and later)
