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2020–2025 Toyota GR Yaris Exhaust FAQ's

Please read our FAQs page to find out more.

What downpipe and cat‑back sizing works on a tuned XP210 GR Yaris?

A high‑flow downpipe and 2.5–3.0‑inch cat‑back with smooth transitions reduce backpressure and sharpen response. Retune afterward to manage boost control and emissions readiness where required.

How do I control drone on a daily‑driven XP210 GR Yaris exhaust?

Use larger‑volume resonators, consider a Helmholtz chamber tuned to cruising RPM, and keep hanger bushings healthy so exhaust motion doesn’t transmit NVH into the cabin.

Any sealing and hardware tips for the XP210 GR Yaris exhaust?

Use new multilayer gaskets, torque evenly from the center out, and re‑check after heat cycles. Heat‑shield O2 wiring and apply anti‑seize sparingly on studs.