Cats.. 01-03, then 04+
So, I work at NAPA. It looks as if on 04+ there are only 3 cats whereas on my 01 I have 4. Difference being the back pipe has 2 whereas later they only have 1. They both mount the same to the Y and the O2 sensor is in the same place. Has anyone just put the 04+ cat on the 01-03 3.0? It'll save abt $200 (at MY Napa cost) to leave a cat out, plus it'll sound better...
Why on the 01-03 are there 4 and on the 04+ there are only 3?
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