Yes, muffler deletes exist in a legal gray area in Peru, contingent on compliance with national emissions standards.
Muffler modifications that reduce noise or alter exhaust flow violate Peru’s Decreto Supremo 023-2017-MTC, which enforces EURO 4/5 equivalent limits. The Ministerio de Transportes y Comunicaciones (MTC) and Organismo de Evaluación y Fiscalización Ambiental (OEFA) actively penalize non-compliant vehicles during roadside inspections. Recent 2026 draft amendments propose stricter acoustic thresholds, aligning with Andean Community regulations, potentially criminalizing muffler deletes as environmental violations.
Key Regulations for Muffler Deletes in Peru
- Decreto Supremo 023-2017-MTC: Mandates exhaust systems must maintain original noise levels (≤ 93 dB for motorcycles, ≤ 90 dB for cars) and emissions compliance. Unauthorized modifications trigger fines up to PEN 5,000 (~USD 1,300).
- OEFA Enforcement Protocol (2024): Authorizes random decibel testing in Lima, Callao, and Arequipa. Vehicles failing checks face mandatory reinstatement of compliant mufflers within 30 days.
- Andean Community Decision 813 (2026 Draft): Proposes harmonized noise limits (≤ 85 dB for all vehicles), which, if ratified, would retroactively invalidate existing muffler deletes nationwide.