Thanks guys. This is why I knew they were crush and not mandrel.
I just had a custom Borla exhaust installed on my '96 G20 a few months ago, I use to own a '91 NX2000 and had a Borla rear section with custom 2" cat-back pipe, my wife had a '91 Sentra SE and I had to replace the rear section with OEM exhaust and muffler when it rusted away and I also saw a fellow SR20DEForum members OEM exhaust (JACEN99SE) sitting in his garage from his '99 Sentra SE after he had a Courtesy midpipe and custom rear section installed.
All of the above Nissan/Infiniti's do have crush bent OEM exhausts directly from the manufacturer.
As well as my '81 Toyota Corolla 1.8 SR-5 Hardtop Sport Coupe
(My first car back in '88. Wish I still had that one.)
and my '84.5 Ford Escort Hatchback
(2nd car)
and my '87 Nissan Sentra SE
(3rd car)
SoI figured I wasn't talking outta my other orafice.