is it worth getting a 180ø Degree Low Temperature Thermostat ?

No, get a regular thermostat for whatever a 2.2 operating temperature is. Unless you have performance upgrades that require it, you may well damage your motor if don't use parts that meet specs.

Get a 180 degree from Napa. DO NOT GET ONE FROM AUTOZONE!

195 degree is the right thermostat.

And What's wrong with autozone?

Autozone told me my overhear valve engine was a fluke because I showed them the PCV breather filter would NOT leak oil all over. I told him I don't have the OHC engine and he should consider suicide, or at least not tell me my motor is a fluke.

In a 2.2 auto... it's a 180 degree. You likely have an identical car as mine.... read about what problem I've had with my AutoZone thermostat (http://www.automotiveforums.com/vbulletin/showthread.php?t=335227).

or you can do it like i did it, cut the fan wire and ghetto rig it to your fuse box and hide all traces i did mine professional and my idel temp is much lower now

whats the proper temp for a 98 2200 with a 5 speed

I have a 180... but I think it's actually supposed to be a 195, which was too hot for my car. Make sure you get a Stant, and not some cheap crap from AutoZone.

anyone know the location of 2001 thermostat for cavalier

right in front of the header towards the bottom left (looking at the car)