APPROVAL OF AIR FILTERS AND ADMISSION SYSTEMS

What air filters regulations say:

The vehicle reform manual, in point 2.1, for vehicles of category L, reads:

"ADDITIONAL INFORMATION

This reform shall include modifications or additions affecting the intake silencer (air filter), its accommodation, the ducts prior to it, the resonators, if any or later to the carburetor or is an air-to-cylinder control system, which does not change the vehicle's performance, the maximum speed in the case of categories L1e , L2e or L6e, or engine power, in the case of all other categories.

Reform code 2.9 – Modification of systems or programming thereof that may vary the maximum power, in the following cases:

• The reform involves increasing or decreasing the vehicle's performance.
• The reform affects one or more of the following elements of the admission system.
  • Carburetor or cylinder air control system.
  • Intake Step: the intake step on the cylinder, cylinder head or crankcase.
  • Intake tube: the part that attaches the carburetor or air control system to the cylinder, cylinder head or crankcase.

How to Interpret Regulations:

According to the regulations, the replacement of the filter(s) with others that modify the performance of the vehicle, as well as the removal of the original filter box, shall be considered reform.

Conical filters will always be considered as reform as they are understood to modify the performance of the motorcycle.

You can still take a look at all the ones we have available in our Air Filters section

How to proceed:

Today, almost all reform laboratories only allow you to approve air filters that have a TUV certificate that proves that they are tested for your motorcycle model.

If this TUV certificate is not available, it will be necessary to carry out tests in one of the few laboratories enabled for this purpose in Spain, with the approval process going very far.

While it's true that there are approved tapered filter kit for some types and models of motorcycles, make sure the one you're going to put on is right for your project.

Therefore, we recommend that in the event of this colourful reform, we retain the original filter box, as we may not be able to include air filters in our reform file.

Depending on your goal, you can use sports air filters, which are installed in your original filter box. These provide considerable improvement and will not give you the headaches of a reform.

Attention: Many owners of modified bikes, take the easy path which is to hide the modification and install the standard part when introducing the to the Periodic Review of the ITV, and then proceed to change it again. We recommend that you legally approve all modifications made to your vehicles.

You can make the queries you need to our head approver.