Hello! I have just read an article on so-called “HALO candles” on tuningteile.de. Supposedly these should last a long time (120,000 km), increase the performance (up to 10%) and also reduce the consumption and the pollutant output. That sounds like a miracle… What do you think about it? Has anyone had experience with the product? I don’t know if I should believe all this… Thanks! Ciao