Hi, together, someone knows how to remove burnt-in remnants of rubber or clothing residues on the exhaust. I’ve already read a few posts in the forum, but they’re older. Maybe there’s something new on the market that helps. Oven cleaner tried – is useless, everything chrome plaster stuff doesn’t help either. Scratching away with knife or something like that messes up the chrome. Who has a few tips? Enjoy me over the sympathy, greetings from the harleyglider. -Saarland forever!!-