The title says it already. I want (or, according to an acquaintance) to have the piston rings changed in the context of my upcoming big engine sealing action. Now I sit in front of the computer and find – as so often – of course piston rings from different manufacturers. The world would be so simple, if there were only one manufacturer for everything and only one screw size. Unfortunately, it is not (yet) like this and I have to decide for a manufacturer at some point. read now and again grinds, goats and pistons. There are significant differences in quality. Which would you recommend? Makes it even sense to just change the rings without having to do anything on the cylinder. Thank you.