3. The catalytic converter or particle filter that I bought does not work properly. Does it have any guarantee?

The guarantee period will be that granted by the manufacturer for each product marketed by Kat Europe, which will usually be two years.

The guarantee period for each product will be indicated on the purchase invoice and this will be necessary for processing the guarantee.

The guarantee covers any manufacturing defects.

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More information: Guarantee: what is your right as a buyer?