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Euro3 vs. Euro4 exhaust, what is the difference?

We regularly get the question about what is the difference between the Euro3 and the Euro4 silencers.

Here the clarification.

The biggest difference between the two versions is the removable db-killer.

It is no longer removable on the Euro4.

From 1 January 2017, the new motorbikes are therefore subject to the Euro4 standard. This new standard therefore requires that the db-killer can no longer be removed without causing damage in order to be able to remove it. There are still a large number of models of motorcycles that are unchanged (as far as the exhaust is concerned) since the introduction of this standard, I just think of the MT-07, MT-09, BWM GS1200, etc …

For these bikes there are usually 2 versions available in the exhausts, Euro 3 and Euro4 (for models from 2017 onwards). Concretely, therefore, the Euro3 versions apply to this, they are only not legal.

For the new models after 2017 there will only be a Euro 4 silencer available. So keep in mind that your new silencer can have a welded db-killer. Some brands still make it quite easy to remove them, while others find it a lot harder or sometimes impossible to take them out. So, in case of doubt, ask a question!

Here is an explanation of how it is described in the new law.

 

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Spark exhaust now also available at KGL Racing

Now available: Spark exhaust

Spark is a brand of Vecchi s.r.l., an Italian company specialized in the production of high performance exhaust systems for cars and motorcycles for over 40 years, historical supplier of prestigious companies such as Ducati, Bmw, Aprilia, Amg, Lamborghini, Porsche …

With the Spark brand they have decided to put all the TECHNOLOGY and EXPERIENCE gained over the years at the disposal of the PASSION for the 2 wheels.

Therefore they created a line of special exhaust systems for motorcycles, with a very high quality standard, rich in details and with great care that make them unique and with a strong personality.

More info here