I have a 2000 bone stock M6 Ws6 and was wondering which is better the Superchips Cortex programmer or the Hypertech hyperPAC power programmer.
Don't know which one would be better.

 

I believe the general consensus is "neither". Either get a mail-order tune or wait till you have mods and get a good dyno tune.

 

Both are good,

and do as advertised. The Superchips one probably the better of the two.

All programmers are fairly good and give decent results within their limits; but cannot beat a comprehensive tune from a reputable shop that advertises tuning using software such as HP-Tuners or EFI-Live.

A good mail tune using either of these, custom ordered for your application is considered much better than a hand-held programmer tune.