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how many cats?


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Posted

2004 Silverado 2500 HD 6.0L 4x4. I think i have a partially plugged cat. I see the 2 Main cats but there is also a smaller "precat looking" piece on each bank.....the bank 1 (left) side one goes right by the oil drain plug, are these precats? Thanks

Posted

Think they are resonators... Like cats.. Sometimes they will clog up and cause loss of power the same as cats.. I say gut um all

 

 

-StUdDaRd-

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