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- Sun Aug 28, 2011 6:45 am
- Forum: Trinity GM Gas
- Topic: 2008 gmc sierra tune questions
- Replies: 3
- Views: 2425
RE: 2008 gmc sierra tune questions
FWIW it woke my 2500hd 6.0 up ALOT. Plus you can get custom tunes for your 5.3 with the Trinity or Predator. I lost zero torque/hp, only gains man. It was a whole new truck. Try it out..you wont be sorry..