Baldy

My goop only lasts a little while before you can hear the exhaust leaking again. I've taking it apart twice and regooped it when I've failed inspection. Last time I put some high temp red stuff (maybe RTV?) instead of the stuff Nissan gave me. That only lasted long enough to get a sticker basically. I am too cheep to have the cats replaced for $1000 or whatever it is, so I guess this will be an annual project.

I would try that first cause its gonna be way more to replace them.

QXRover, I have LE 17's and want to put the biggest tire on I can without lifting the vehicle. Sounds like 265/65R17 is the size to buy? You said you were running Toyo Open Country's, it was close but never interfered right? I wonder if all tires in that size will fit, or are some slightly different and might rub the strut. A test fit at the tire shop will be enough to tell i guess. Any problems with the ABS system?

I had this exact problem with my 02' Pathfinder. I tried to have the dealer fix it under warranty cause it's supposed to be covered for 10 years. They wouldn't do it for free but they had a kit with an official Nissan part number to repair the cats cause its relatively common, and they don't want to have to replace the cats at their cost. I ended up buying the kit , I think it was like $50, and doing it myself. It was basically some goop, a couple of metal rails, and some band clamps. You goop the rail, put it over the seams of the cat, and band clamp the whole thing together. It was pretty effective at jerry-rigging it.