firefighter_2319
more time than money
this weekend i will be removing my cats from my 5.7 vortec. do i need to put the spark plug non foulers on the doewnstream (back) 2 02 sensors and have no CSE light or can i just cut out the bungs from the cats and install them on the new exhaust pipe? and does anyone know the size of the non fouler i need to do this? thanks