I just got back from Autozone. I took a look at the Gp-Sorensen / Fuel Injector
they sell for $80.00. They let me look at it out of the package. It's pretty damn good quality! All the O rings come on it even the insulator! If you handed it to someone they could mistake it for a Nissan OEM injector. The connector and plastic parts are molded out of very high quality plastic not like some of the OEM "like" parts that have plastic boogers stuck on the edges from the molding process, which never quite seat correctly onto harnesses.
If I decide to replace my injectors I'm definitely going the Autozone route. I never used to shop at Autozone, but I'm definitely sold now! I also picked up a Napa Gold (Wix) fuel filter seeing as it's never been replaced in 186K. I'll do that tonight.
Definitely Autozone fuel injectors FTW! All the Way!