how much different is speed pro to fast

[blownmarkvii]

i bought used speed pro system with 07/13 /99 manufacture date ,do they differ much then to now or is it a software thing?
also it is bank to bank,wide band o2.

 

[twin 93 svt]

same

 

[blownmarkvii]

thanks for input

thanks ,still looking for a startup program.

 

[twin 93 svt]

sent you e mail