No, muffler deletes are illegal in Brazil under CONTRAN Resolution 916/2022, which mandates original or equivalent exhaust systems meeting noise and emission standards. Non-compliance risks fines, vehicle impoundment, and invalidates insurance. Recent 2026 updates to the National Traffic Code (CTB) further criminalize tampering with emission controls.
Key Regulations for Muffler Deletes in Brazil
- CONTRAN Resolution 916/2022: Prohibits modifications to exhaust systems that alter noise levels beyond 93 dB(A) or deviate from original manufacturer specifications. Vehicles must pass periodic inspection (IPVA/RENAVAM) to verify compliance.
- National Traffic Code (CTB) Art. 231: Classifies muffler deletes as “environmental crimes” under Law 9.605/1998, punishable by R$ 500–R$ 10,000 fines and 6-month license suspension.
- IBAMA Emission Standards: Aligns with PROCONVE (Phase 7) limits, requiring catalytic converters and mufflers to reduce CO/NOx by 90%. Aftermarket parts must carry INMETRO certification; uncertified deletes face immediate confiscation.
Enforcement targets urban centers (São Paulo, Rio) via mobile inspection units. Dealers and mechanics facilitating deletes may face corporate liability under Decree 10.088/2019. Imported vehicles must comply with Mercosur homologation (Res. 425/2012) before registration.