No they didn’t know I did have long tubes and cat back installed they said there was a thin line on the pavement that would have been where the break line flexible hose would have been, and suspected that, they have been great. No charge and have credited me for all previous work done to the truck.No offense to the UV, but ricochet is where it’s at!!!! Just kidding. Any idea what actually started it all? I once had some long tubes installed on a smokin asphalt that almost literally became that. The installer forgot to adjust the power steering hose away from the header, with flaming results!