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Tag: noise limit dB

Is a Full Exhaust System Illegal? UK, US, and EU Rules Explained (2025)
full system exhaust exhaust legality MOT rules noise limit dB catalytic converter laws

Is a Full Exhaust System Illegal? UK, US, and EU Rules Explained (2025)

Wondering if a full exhaust is illegal? Clear 2025 rules for UK, US, EU, Australia-noise limits, MOT, cats/DPF, valves, and how to stay road‑legal.

September 9 2025