I contacted purolator about the torn media situation that I encountered with the pure one that came off my '13 Sierra. They sent me a packet to return it in, and it came with Mann-Hummel identification on it. Has Purolator been bought out by Mann-Hummel? Maybe this has some correlation to the media failures some of us have been experiencing. I don't have any experience with the Mann stuff. I've seen it in the stores but I thought it might be something that comes into town, and then disappears like so many other brands we've seen over the years, so I never bothered to try one.