I have a 2002 chevrolet silverado with dual exhaust?

justinlbw

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when I take off it souds fine but about 2nd gear it sounds like there is a slight clog in the exhaust. In neutral, when I rev it up it sounds fine. What could this be? Maybe the catalytic converter?
 
Sounds like your converter or muffler is breaking down inside and blocking flow as your drive.
 
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