1.) Is it allowed to use sports exhaust?
There is no law that prohibits the use or regulates the use of sports exhaust, so there are differences in the interpretation of the law, which says that the vehicle can not have its characteristics changed. However, if we take into account that a sports exhaust fulfills the same functions as an original, that is, to carry engine gases out of the engine safely and continuously, maintaining engine compression and controlling noise emission, we have to , what is happening is a simple mistake on the part of the traffic agents in the act of inspection.
Thus, according to CONAMA Resolution 252/1999, Article 5:
“Paragraph 1. Exhaust systems, or parts thereof, may be replaced by similar systems, provided that the new noise levels do not exceed the levels originally obtained and declared by the vehicle manufacturer, pursuant to CONAMA Resolutions 1, 2, and 8, 1993 and those set out in TABLE 1. ”

2.) What differentiates a sports exhaust from an original exhaust?
Sports exhaust is lighter and generally uses more noble materials except the most basic models. They have a distinctive and more modern or less common design and are designed to improve motorcycle performance and produce a sportier snoring.

3.) What standards are exhaust manufacturers subject to, more precisely rules governing the level of noise emitted by them?
We currently have:
* CONAMA Resolution No. 256 of June 30, 1999 of CONAMA which, in short, regulates the inspection of motor vehicles for air pollution and noise emission;
* CONAMA Resolution No. 252 of February 1, 1999, which establishes the noise emission table for motor vehicles, as well as the way the tests should be performed;
* Brazilian Traffic Code - article 280 and paragraph 2. which stipulates that in an enforcement action the transit agent shall conduct tests proving the adequacy of the exhaust to the standards laid down in resolution 252 of 1 February 1999;
* NBR9714 / 2000 is the standard that establishes the processes and methods for measuring exhaust noise levels.

4.) Do sports exhaust meet noise standards?
Obviously it would be impossible to generalize this answer, however, it is clear that serious motorcycle parts replacement companies have this concern and offer products that meet the specifications required by law.

5.) Is there any noise emission report?
There is no noise report that has any legal value for parallel market exhausts, as the legislation does not establish a specific standard for these products. Existing reports are only Certificates of Technical Responsibility (CRT) signed by engineers who are responsible for the information contained therein,
however it is not legally recognized.

6.) Is there a certificate or even a symbol that is placed in the exhaust as proof that it has been subjected to noise testing?
Only automakers are required to have the certificate to obtain the release (approval) of sale of the motorcycles. The tests are done by private companies and approved by the competent agencies, but there are no symbols, marks, stickers or mandatory identifications on the exhausts.

7.) Is there an INMETRO seal?
It does not exist, because INMETRO is not the body responsible for the certification of sports exhaust. There is no specific regulation for this segment yet.

8.) What are the bodies responsible for controlling noise emission?
* IBAMA - Brazilian Institute of Environment and Renewable Natural Resources and
* CETESB - Environmental Sanitation Technology Company.
* CONAMA - National Council of Environment.

9.) Does the exhaust before being put on the market for sale have to go through tests beforehand to see if it meets legal requirements?
There are no requirements or regulations for this, however, during the development and sizing process, our products are tested and structurally tested for safety and quality.

10.) Will I have problems with the law if I use sports exhaust?
The sports exhaust manufacturer cannot be held responsible for errors made by the enforcement agents. We only guarantee that our products, when shipped from the factory, are tested and meet the requirements of noise standards:
99 dB for motorcycles manufactured by 12/31/98;
From 1/1/99 - max. 3 dB above that described in the original manufacturer's manual.

11.) I was fined for excessive noise, what should I do?
Upon receipt of the notification and the fine, you must appeal based on the legal framework within the noise specifications.
If the request is rejected on 1st. Instance, enter defense for 2nd Instance.
It is very important to observe s