Heard my exhaust making some funky sounds today while driving home from work. I figured it was a loose connection, but it wasn't. I tightened everything down and then I noticed a few drops of some mysterious liquid on the ground. Turns out gasket has malfunctioned and isn't sealing properly, so I need to get a replacement.

I wanted to get the OEM gasket since there's a Nissan dealership close to me, but I came up with two different part numbers: 20692-65J00 and 20692-8H30A. From what I can find, one connects the cat to the y-pipe, and the other connects the y-pipe to the mid-pipe. Does it matter which one I get?

I also found Z1 Motorsports selling some of their own gaskets. A 2-pack from Z1 goes for $8, while a single gasket from the dealership is at least $15 (based on Nissan/Infiniti parts sites). Are the gaskets from Z1 higher quality? Are they worth the shipping wait, or should I get just the one I need from the dealership and get my leaky exhaust fixed asap?

 

Try your local Napa...assuming you know the flange/pipe I.D. and stud spacing, you can just pick one out of their catalog that fits. I picked up a flange and matching gasket there for less than $8 with the exact measurements I needed.

 

I had the same problem when I removed my exhaust recently to do the rear differential bushings. You can get a really high quality metal gasket (non perforated) from Z1 motorsports for $14, take your exhaust apart as much as you want and never have to worry about it again.