KYB Stossdaepfer??

Moin, after I just replaced the complete exhaust system with my elk, it looks like the daempfers give up all around the mind … After a first careful search I stumbled over daempfer of the manufacturer KYB? Does anyone know the brand? Do they do what? Otherwise there is a cost-effective recommendation for a V70I without nivomat and big snaps??? Thank you and greetings!