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New Cats installed and passengers side gets red hot


Go to solution Solved by TWO LANE BLACK TOP,

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Hi All

I hope someone out there can help me. I installed new 2 1/2 inch exhaust from the exhaust manifold to the the tailpipes. all new SS pipes with cross over and cats andย  magna flow mufflers.

Car starts runs for a while then the one side of the cat gets beat red. car runs rough after wards. does anyone know what I have done wrong.

was told that the new cats are wrong. the old cat was the large cat that looked like a parge pizza. was told that the new cat is a one way flow and the old cat was a 3 or multi flow cat that can take the unburnt gas from the engine.

Any advise

ย 

Thanks Mike

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That was the old skool way of testing for a plugged cat.ย  Get it warm at night and look under the car.ย  Replace if it glows. Also check flow from exhaust tip with your hand to see if there is a difference.ย  Did you install??? Can you check to see if flow is in the right direction?

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