Which of the following mods would allow Mazda to legally say "F Off" to a reman still under warranty?

Porting
Aftermarket (AM) IC
Installation by someone other than dealer
AM Intake
DP
Mid - pipe / hi flow cat
ECU
Removal of AST
AM AST
AM Radiator
AM Turbos
Any other goodies

Also - is the 12 mo / 12K the only warranty available?

Thanks,

M