They are heating the hell out of the cats by putting raw gas through the system. Appears to similar to the B12 technique. I agree with having fire extinguisher present. This work?

Rich S.

1998 SVT 1995 Contour 2.5 MTX 215K miles Son's car(dead and buried) 1997 Contour 2.0 ATX 1998 Contour 2.5 ATX 2004 Tauras Wagon 3.0 Duratec