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- Sat Apr 21, 2007 3:31 am
- Forum: Predator GM Gas
- Topic: disabling V8 to V4 mode 07 Chevy Avalanche
- Replies: 16
- Views: 151143
custom tune U 7194
IF I DO A custom tune CAN YOU ADD A TRANSMICHEN TUNE FOR FIRMER SHIFTING EMAIL ME AND LET ME KNOW [email protected] THANKS