05-02-2018, 12:44 AM
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#263
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Drives: '17 2SS convertible'20 Yukon Denali
Join Date: Nov 2011
Location: Cedar Park, Texas
Posts: 3,048
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I installed mine and had the dealer do the tune. No noticeable change in power but it does sound better. I didn't think GM claimed it had any more power, just remapped for emissions.
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Richard
2017 2SS SIM convertible, A8, NPP, MRC, 56R wheels, GM CAI, Diode Dynamics Side Markers, Mamo Throttle Body
Delivered: 08/15/2016
#TeamBeckyD
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