What are the benefits or draw backs from removing or hollowing out my cat? Will I gain some power? Air flow better and lower temps? Will it be really loud?
eelout
Lower EGT's. As far as seat of the pants power , my 04.5 felt a little sluggish after the cat and muffler delete.
If you have the power mods , it's worth it for the air movement...
just removing the cat will not make it really loud. not sure how much it will change with the stock muffler. I changed the muffler as well and now from outside the truck you can hear a nice low tone. Inside did'nt change much at all.
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