I dont know that I would cut the catalytic converter off due to the fact that the 02 sensors dont like that much (I think, im not to familiar with the 3.5 o2 sensor locations) and them are good for giving the engine some backpressure and a better tone. I did my exhaust 2 days ago and I just cut out the original resonater and put in a Cherry Bomb 26 inch glasspack. left the cat there as well as the stock pipe. If you want really loud you can chop the cat, but I have never heard- and dont think i will- a v6 to sound like a v8, especially not a big block.
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Dimebag Darrell isnt dead, secretly he is somewhere teaching Chuck Norris how to be a man.
'94 Dodge Intrepid 3.3, black, 149,500- rip
'96 Dodge Intrepid 3.3, silver, 227,000
'98 Jeep Grand Cherokee 5.9 Limited