Looking for a .tun file 2002 Silverado 6.0 LQ4, 4L80E, 4x4 with a 12212156 OS

[L31Sleeper]

Looking for a .tun file 2002 Silverado 6.0 LQ4, 4L80E, 4x4 with a 12212156 OS

If Such a file exists please help.

Thanx
-Justin