OK, thanks.
I´ll check Menze / Hagen and Yes, I mean the single shot.
I remember from my Kawasaki exhaust that ceramic coating will cost minimum 300 Euro :-(
@Helge .. talk to them they do powder as well
another company which doing exaust systems called MBTat Moers
(somebody out the neighbourhood did it there on his BMW 9t and after 3 years perfect)