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IT DONT STOP
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I just got one and did a regular gas tune on my nbs tahoe and logged my rim and tire size in, what else have yall adjusted to make a big difference?
 

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i have one, did the same thing as you and didnt see anything really noticeable. wish i knew about bb tune:flame:
 

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I had one of those. Then I discovered the great BlackBear tuning. Now it's sitting in my garage with a bunch of junk where it belongs. :biggun: btw the most performance gain you can get out of that thing is on the 93 octane high performance setting :imo
 
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