No, muffler deletes are illegal in Vietnam under the 2026 draft amendments to the Law on Road Traffic, which explicitly prohibit modifications altering original exhaust noise levels. The Ministry of Transport (MoT) and Vietnam Register enforce compliance, with fines up to VND 10 million (≈$420) and mandatory re-inspection for non-compliant vehicles.
Key Regulations for Muffler Deletes in Vietnam
- Noise Emission Limits: Vehicles must adhere to Vietnam’s 2023 QCVN 41:2023/BGTVT, capping exhaust noise at 93 dB(A) for motorcycles and 100 dB(A) for cars—deletes typically exceed these thresholds.
- Type Approval Violations: MoT’s 2025 Circular 20/2025/TT-BGTVT mandates that any exhaust system modification voids the vehicle’s original type approval, triggering penalties under Article 30 of the Law on Road Traffic.
- Inspection Enforcement: Provincial Transport Departments conduct random roadside checks, collaborating with traffic police to impound vehicles lacking compliant mufflers, as per Directive 05/2026/CT-BGTVT.