What was the cooling upgrade on '96 Cobras?

[RedTwilight]

What exactely did the cooling TSB for the '96 Cobras change? Just planning some future mods and wondering what parts I would need to use!
Thanks
Trinity

 

[COBRA90GT]

Lots of archived info at the "Crunch Colorado Cobra" site for the 1996 Cobra cooling problem:

http://crunch.colorado.edu/~cobra/topics/96/96cobras.html

Scanned documents:

http://crunch.colorado.edu/~cobra/gifs/anon-96cooling.gif

http://crunch.colorado.edu/~cobra/gifs/lord-cooling-tsb.gif