im getting ready to have a catless midpipe made and was curious to see if anyone has done this and what they used to allow the truck to run right. do you have to buy a programmer or can i just buy the mil eliminators. also if the eliminators work do i plug them into the second set of o2 sensors or the first set. thanks for any info.

 

dont even think about doing it.no low end and VERY loud.and i cant hardly hear anymore.they go in the back fitting so the computer still thinks they are still on.but do a search on this and see what other people have said about doing this.i did this with a stock truck and had no problems except what i said above.buy some long headers and i think you will be alot happier.
VERY loud!