When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
yea, a CAT on a diesel is next to pointless. Our friend with a diesel (though it isn't a dodge) pulled the cat off his truck and gave it a straight pipe past the muffler that dumps straight onto the rear tires (for heating them in cold weather) and he has a 10,000+ pound trailer and a camper in the bed, we were with him and he did 80 in it no problem getting ~14 MPG (unchipped).
ok, i'll quit rambling now. but a cat on a diesel is worthless.
it only voids warranty on exhaust system,droped my egts 150 deg ,and it smells like a real diesel now instead of propane burner,besides that 2004.5 with the 600 motor was the 1st year w/ a cat ,its personal preference