All, to a greater or lesser extent, have a well -formed idea of what What is the DB Killer and what is the function of this within the escape system of a motorcycle. However, after the approval of the new ECE 92.03 regulations, there are a number of aspects that change radically with respect to this well -known accessory.
Today we want to solve all the doubts that revolve around the DB Killer, and clarify what their role will be from now on the two -wheeled sector.
What is the DB Killer?
This is, without a doubt, the first issue that we must solve on the DB Killer. Grocery way we could say that it is a metal piece responsible for limiting the sound of the motor of a motorcycle. Its mission is also to ensure that the exhaust system does not exceed the maximum decibels allowed at any time of its operation.
It does it mainly restricting the passage of the exhaust gases and therefore the sound that the combustion of the engine produces.
Where is a DB Killer located?
The DB Killer is located in the final part of the silent, usually anchored by a welding point after the last Euro5 regulations of 2020. Previously, this system used to be screwed in the same part, so its manipulation was much easier. In fact, many fans chose to extract it with the consequent increase in noise generated the motorcycle itself, usually half and high regime.
How does a DB Killer work?
Basically, the DB Killer works by reducing the speed and pressure of the gases when passing through the internal holes or chambers that we find in its design. It is possible to reduce the decibels significantly without diminishing the general engine performance.
When do I have to use it?
This system is usually mandatory in most high -specification escapes of the auxiliary industry. Therefore, if we do not equip the standard escape of our motorcycle and opt for one of any of the brands that are marketed in parallel to the original accessories, we must verify what is the level of decibels issued by our motorcycle to suppress the DB Killer.
Generally, if we do not carry out the DB Killer we will widely exceed the maximum allowed amount. That is why the use of the DB Killer is practically mandatory in any street motorcycle that takes an escape system approved as an optional accessory.
When can I remove it?
Only when the use of our motorcycle is inside a circuit. Out of a track we must Always carry the DB Killer In our escape system, in order to comply with current regulations. Of course, also to avoid being sanctioned by the competent authority with large fines for excess noise.
How does the new regulations affect the DB Killer?
In the European Association of Motorcycle and Anesdor manufacturers, in collaboration with the main escape manufacturers, they developed an orientative guide on the anti -manipulation guidelines that the exhaust systems had to meet. This strictly clarified the technical requirements to guarantee the corrections setting the cones of silencers and DB Killer systems, thus avoiding their easy extraction.
Two years later the aforementioned regulation has been approved ECE 92.03 which introduces new provisions to prevent the manipulation of motorcycle replacement exhaust systems. In Cristiano: The new escape systems will be prepared not to be able to modify or extract the famous DB Killer.
In the approval of this new regulation, some of the most reputable escape systems manufacturers of the moment have participated, including brands of the level of the level of Yasuni Akrapovic, Arrow, Giannelli, Lafranconi, Leovince, MIVV and SC Project.
