Kevin 
2005 Nissan Pathfinder SUV LE 4WD 4dr SUV (4.0L 6cyl 5A)
No quality in catalytic converters
 Heat shields rattle. Brakes squeak until replaced w/better brake system. 3rd catalytic converter failure w/in 40k. We have maintained the car faithfully since new (synth oil, rotate & bal tire, good fuel, cleaned fuel injectors, flushed radiator regularly). Love the car other than the continuing problems with catalytic converters. We have had 5 Nissans and have been loyal Nissan customers for 15 years. Dealership told us contact Nissan Corporate Customer Service because of several complaints w/ catalytic converters. Nissan Customer Service said too bad too sad...said "we don't qualify for help" implied we don't spend enough at Nissan. Don't worry Nissan. We won't spend anymore! Buy American!