Tips Sahabat

Rules for Using Car Exhausts on the Road, Let's Understand!

09 April 2025
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The rules for car exhausts on the highway must be understood by every driver. If a driver uses an exhaust that does not comply with the noise standards set by the government and Korlantas Polri, the driver will face legal sanctions, in the form of fines or imprisonment. For those who are not aware of these rules, let’s pay attention to the following review. 

Rules for Using Car Exhausts on the Highway

The use of car exhausts on the highway cannot be arbitrary, as the exhaust used must comply with the standards set by the government and Korlantas Polri. Car exhausts used on the highway must not be too loud as they can disturb the comfort of other road users. 

The rules regarding the noise level of car exhausts are regulated in the Minister of Environment and Forestry Regulation Number 56 of 2019. For private cars, it must not exceed 74 dB (decibels), and for goods vehicles, it must not exceed 84 dB (decibels). Drivers who violate these rules will face penalties, namely imprisonment for up to one month or a fine of up to Rp250,000. 

The legal basis for violations of noise regulations is stipulated in Law Number 22 of 2009 Article 285, which states, “Anyone who drives a motorcycle on the road that does not meet technical and roadworthy requirements, including mirrors, horns, headlights, brake lights, turn signals, reflective devices, exhaust noise measuring devices, and tire tread depth as referred to in Article 106 paragraph (3) in conjunction with Article 48 paragraph (2) and (3) shall be punished with imprisonment for a maximum of one month or a fine of up to Rp250,000.” 

Tips to Avoid Violating Car Exhaust Noise Laws on the Highway

To keep your car free from exhaust noise inspections, you must know the following tips. 

1. Choose an exhaust that meets highway noise standards

The first tip is to choose an exhaust that meets the noise standards set by the government and Korlantas Polri. Ensure that the exhaust you choose has a noise level below 74 dB for private cars and below 84 dB for goods vehicles. 

2. Buy exhausts from reputable brands

The second tip is to buy exhausts from well-known brands or manufacturers. Exhausts from reputable brands usually have noise levels adjusted to comply with regulations set by the government and Korlantas Polri. Even now, well-known brands or manufacturers of car exhausts pay attention to exhaust gas emission levels to avoid environmental pollution. 

3. Don’t modify the exhaust carelessly

The third tip is not to modify the exhaust carelessly. As is known, modifying an exhaust often changes its sound, increasing its noise level. If you intend to modify a regular car exhaust to a racing one, you need to pay attention to the following points. 

  • Ensure the car's exhaust system is safe. 
  • Ensure that the exhaust you modify does not change the structure of the exhaust pipe, muffler, or header pipe.
  • Ensure that the exhaust you modify does not alter the combination of carburetor components, intake manifold, or engine position. 
  • Ensure that the exhaust you modify has dimensions that comply with manufacturer standards and the type of car transmission. 

These points need to be considered so that the exhaust can function properly and not rely solely on aesthetic design. 

Read Also: What is a Car Exhaust Catalyst? Its Functions & Types

Thus is the review regarding the rules for using car exhausts on the highway that you need to know. If you intend to replace the exhaust, make sure to do so at an official Daihatsu workshop, so that your exhaust always complies with government regulations.

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