OS 12587603 wanted

[Largesfc1]

I have used the search feature but I cant find the file. I can find it talked about a lot but no file.
any help would be appreciated.
Thank You

[ironduke]

Just the OS file? or an entire bin from an ecm?
Below is just the OS from sps2 cache.

12587603.bin

(912 KiB) Downloaded 124 times

below is complete bin from a vehicle

03_Sierra_LM7_4L60E_DBW_OS12587603.bin

(1 MiB) Downloaded 136 times

and another from a vehicle

2003.SSR.Stock.5.3..12587603.bin

(1 MiB) Downloaded 126 times

[Largesfc1]

ironduke Thank you so much!