Tuning questions

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Ohmerracing

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I'm looking at getting a tuner for my 08 Yukon XL Denali 6.2L (completely stock). I live in Colorado at 9,500ft elev. I'm looking for more power for driving in the mountains. I see everyone raving about the Black Bear and was wondering about custom tunes.

What kind of hp/torque/mpg gains are you seeing?

Any other suggestions?
 

JennaBear

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HP/TQ will vary depending on the mods and gas (octane and quality). We typically see 25-25HP and 20-30TQ on the stock setups.
 

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