Comments by "" (@paulocarvalho6480) on "Cut off Catalytic Converter! Job went Bad! 2007 Sierra 5.3 AFM DOD P0300 P0420 P0430" video.

  1. In the US nobody uses under carriage protection? No wonder some cars look so rusty. Using a blow torch and WD40 ( or some other penetrating oil) would work wonders, and instead of studs (which ALWAYS cause these problems) it should be a bolt and nut system. It makes this job a lot easier. Anyway, the job has been done, but I have to say it was hard watching you struggle so much. Have a nice day, Ray and family.
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  2.  @hotpuppy1  This car isn't that bad, but in previous videos some cars are really bad. What I'm surprised is that there is no rust protection in some critical parts ( in this case is the exhaust).
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