All the Exhausts on our website are homologated and presents the homologation plate + a certificate to be attached to the booklet .
The products that are not homologated for road use don't have the phrase European approval into the description.
The products that need to be mounted by cutting the stock exhaust does not show in the description the words: to install it on the car without any modifications.
With these certificates is not necessary to have to do to an update of the booklet. You have simply to install the new exhaust and to drive!
If you need further clarification, please contact us via the CONTACT PAGE.