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    Hello. I noticed that you were going to purchase a Hypertech Max Energy Programmer late in 2009. I have a 2007 GMC (new body style) 5.3 V8 and was considering this exact same tuner. Did you see some performance and MPG gains and if so about how much? I also have a K&N CAI so the similarities betwen our engines should be pretty close. Thanks for the info!
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About peacekeeper

Basic Information

About peacekeeper
Location:
Lemont, IL
Vehicles:
07 GMC Yukon XL
05 GMC Envoy XL
95 Jeep Wrangler

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Suburban #4!
K&N, Hypertech

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01-01-2010 12:47 PM
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07-14-2006
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