solve my exhaust issues..5.6ltre
2006 titan...115k miles....I am
thinkink catalytic converters...no
power..was on a autozone
handheld..code came for
cats....o2censers are
original(4)...lost power...idles
great but terible exhaust
noises..I thought it was a
manifold casket...I am going to
install two upper censors...im
concerned.. :'(