I have another thread going about removing my cat ! I did a few searches and did not find anything specific about my question on the Predator EGR off vs. the fingerstick !

Can anyone tell me.......if I take off the cat and block the EGR.........is the Predator EGR off all I need or is it better to go the FS route ????

And while I am at it............my truck was getting exhaust codes with just a 4" cat back MBRP ! I chose the EGR off on the Predator ! My truck is getting bad fuel milage with the Predator (about 12-13 mpg)vs. the Hypertech (about 16-17 mpg)I had before it ! Could it be the EGR off...........or do you think if I turned it back on and just let it set the codes ......I would get better milage ??? I think the codes are P0101 and P0404.......but it's been a while since I checked them !

Thanks and sorry for all the questions.............I just new to the diesel world !! :help: