Full Access Member
- May 18, 2017
- Reaction score
- Treasure Coast, Florida
The BlackBear tune is your best bang for the buck for performance mods and the foundation upon which all other mods build upon. You will not regret it one bit. When it quits raining, we're going to have Justin tune our other GMCs.I'll have to take your word on the gearing, because you clearly know more than I about these things.
I DO plan on getting a BB tune though.