Failed Inspection

so my Taco failed inspection for Emissions. they said it was a bad cat. i highly doubt it there is no check engine light. good thing is i get a performance cat back out of it.

 

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The catalytic converter can definitely go bad without causing the check engine light to illuminate. I had one on my old Dodge pickup collapse (i.e. block the exhaust) with no check engine light. Of course when the rumble of the engine went to a hiss, I knew something was wrong.

Also, just a heads up... 'cat back' exhaust systems are everything AFTER the catalytic converter (tubing, muffler, hardware), not the cat itself.