hey guys im new to the site and i got a few questions!

The check engine light on my ram came on last week and read 3 codes: cylinder 4 misfire, cylinder 5 misfire, and multi cylinder misfire

i thought about it and it had been a while since i had changed the spark plugs so i went ahead and did the whole deal (champion plugs, wires, cap, and roter)
i cleared the codes and they poped right back up, im out of ideas, what can i do next to fix this? if it helps the misfires are not noticeable, i cant hear/feel them at all?
thanks!
Brad

 

clogged catalytic converter possibly.

 

haha funny ud say that, i have had the cats off for a long time, and had put them back on for better gas mileage, and this did happen just after i had them put on.
i have 2 pipes running threw with cat on each and a muffler on each (2 cats and 2 mufflers) i have been told i need an X pipe some were in there now that i have cats on? could this be the problem?

 

check your wire routing, thats been known to throw misfire codes

 

wire routing? the wire routing for....?

 

The spark plugs. There's a TSB that deals with this and it's referenced many times here in this forum.