My 2010 G37X with 76,000 miles has a rattling catalytic converter and I'm working with a dealership now on potential replacement. Is Nissan/Infiniti covering these under some kind of extended warranty? I seem to recall reading some posts about this...
I'd appreciate any insights as to the best way to approach the dealership, with any TSB's or whatever... Is there a national customer service number I should reach out to? Any info appreciated. Thanks!

 

10 year old car, I'd doubt they would pay for it. Not unless you have some sort of aftermarket warranty.

Time for some HFCs or resonated test pipes.

 

I'm actually going for Berk HFC's at a local performance shop. Getting two, plus a needed Y-pipe for a good deal less than the dealer wanted for one cat and Y-pipe.

 

I just went through the same thing last month, same year just about the same mileage. Unfortunately there's no warranty left on these cars...even though it's a known issue there is no recall or special coverage(TSB's don't mean anything). I just pulled the trigger on resonated test pipes.....so it looks like my modding has begun lol.