Well my truck is a 2004 - 2005 model, unlike the 97 - 03 cats, my rears aren't O2 monitored, i'm not real sure about the 97 - 03 cats, but my rear cats are not O2 monitored so that made it easy for me to do without getting an engine light. But the extra sound is sweet and it performs good.

 

well the 97-03 models have a sensor, pre cat, cat, then another sensor. so you can cut the rears out and will be ok

 

get the mid pipe/cats. there is not much difference until you WOT. IF you have no cats, it will slow you down. at the track i went with no cats versus goin back with cats and i was .6 tenths slower without cats

 

hey guys, i forgot to mention that when i ran slower without cats at the drag track, i dont have a tuner yet but maybe if you had a tuner, u may be good from what i hear

 

alright kool guys thanks i think thats my next project, and if for some dum reason i get a code i'll just put mils on.

 

But doesn't that mean the rears are monitored since they are after the rear cats? I thought you had an engine light after removing your rears when it was with no cats?

 

i cut my pre's off, no light then i cut my rears off and the light came on cuz i had no cats, but i know alot of people with the 97-03 and they cut the rears off and just leave the pre cats and they dont have any problems

didnt joshmac do this?????

 

Yeah & he got a CEL. i'm not attaching ya man it looks it but i'm not.

 

if he woulda just got maggnaflow hi flows his light wouldnt have came on