MRC Upgrade
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Instructor
Joined: Aug 2015
Posts: 165
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MRC Upgrade
Posting new thread despite multiple others particularly today’s excellent summary to possibly get wider forum viewpoint.I’ve read what Tadge said and specifics for each model year but no owner reports re my car.Has anyone with 2018 FIRST half pre factory shut down vehicle had upgrade on Z06 non Z07 and what are your impressions on before and after in various modes? I know some of programming included in all 18s but not all until 19 MY
