Looking to do this myself but I need to know whats involved beforehand.

Thanks

 

it's real easy, on my Z it was just 2 bolts on one end of the cat and 2 on the other, you unplug the O2 sensor, bolt the new cat in and plug in the O2 sensor

 

I believe there is a DIY on g-owners.com. Also, I wouldn't say this is really easy. After doing it twice, with access to a lift, air tools, and a second set of hands it takes about 1/2 hour. If you do it by yourself on jack stands it could be a frustrating experience if you aren't really mechanically inclined. Also, check the list of tools needed and make sure you have them all on hand.

 

Direct link: cat install