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ZL1 Engine Potential
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07-16-2017, 12:13 PM
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soceur77
Drives: 17 NFG ZL1 17 GTR 22 RS6
Join Date: Apr 2017
Location: Upper Marlboro MD
Posts: 625
i was thinking the same thus the whole if you tune it,.... warranty is done. While this is usually the case with any manufacturer it seems GM has really been vocal about this.
soceur77
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