My dad had his codes scanned today on his 2002 Frontier 4wd 3.3L v6 and his cats are bad (could explain the poor MPG's and sluggishness).
He went to an exhaust shop and they told him he cannot run aftermarket cats beacause the truck will not run "at all" I know that is bullshit, the muffler guy wants to sell him stock fit cats for $300 each (it has two cats) and the cats he wants to sell him are aftermarket OE, not even Nissan OEM..
I did a google search and NOTHING turned up (guess there is no info on Nissan's compared to our Tacos??).
Anyone have experience with these trucks? I was thinking cut one cat out, and run a maganflow high flow in the place of another? Or just knock the guts out of them?
And his frontier only has 94,000 miles...and both cats are bad WOW nissan