The 2021 Toyota GR Yaris has earned a reputation as a compact performance car with serious rally-inspired character, but how much does its exhaust sound change when the particulate filter is removed? This sound comparison puts two versions of the same GR Yaris side by side: one retaining its original OPF system and another running without the filter. Through revs, onboard footage and additional sound clips, the differences in exhaust character take centre stage.

Modern petrol particulate filters, also known as OPF or GPF systems, help reduce emissions but can influence the sound produced by an exhaust. This comparison gives enthusiasts an opportunity to hear how the filtered and filter-free setups differ on Toyota’s turbocharged 1.6-litre three-cylinder engine. Which version delivers the more satisfying soundtrack, and how noticeable is the change from behind the wheel? Follow us also on Facebook, Pinterest or Instagram and share this one also with your friends!

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