Do you have the ARC features or just the tune? I know there are some small kinks with the ARC features so maybe that has something to do with your issue. On my car it won't let me change at what rpm I can 2 step launch from, it's kinda annoying lol. I would check with your tuner
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Stillen G3, z1 Intake Manifold, Stillen Headers, Z1 HFC's, Stillen Catback. 330whp 267 ft- lbs tuned at Z1 motorsports.
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