HPTuner and Whipple
So just how hard would it be to do customer programming yourself? I have a Whipple and want to see if I can squeeze any more MPGs out of it. I would like to see what Whipple sets with their tune and tinker with it. Anyone out there done this?
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2005 Hummer H2 LUX
Whipple SC
Ceramic coated headers
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