No. Muffler deletes are illegal in Portugal under national noise pollution and vehicle homologation laws. Modifying a vehicle’s original exhaust system to reduce or remove the muffler violates Decree-Law 226-A/2007 and EU Regulation 540/2014, which mandate compliance with sound emission limits (max 92 dB for passenger vehicles). The Autoridade Nacional de Segurança Rodoviária (ANSR) enforces these rules, and non-compliance risks fines up to €1,250, mandatory reinstatement of the original system, or vehicle impoundment. Post-2026, stricter EU-wide Euro 7 standards may further tighten enforcement.
Key Regulations for Muffler Deletes in Portugal
- Decree-Law 226-A/2007 (Noise Pollution): Prohibits modifications that increase noise emissions beyond homologated levels, explicitly targeting exhaust system alterations.
- EU Regulation 540/2014 (Vehicle Noise Limits): Sets maximum sound levels for homologated vehicles; muffler deletes inherently breach these thresholds.
- ANSR Enforcement Protocol: Mandates periodic technical inspections (ITV) to verify exhaust system integrity; failures result in immediate corrective orders.