You could likely get away with a bootmod3 tune but if you are gonna put downpipes on you seriously need to consider wrapping them and/or coating them. It is this sort of stuff the result in engine failures. Please consider the 2nd/3rd order effects of actions. The rear pistons and rod bearings under these conditions do fail.
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2015 F06 M6 Silverstone Metallic II, Individual Full Leather, B&O, Night Vis, CCB, RKAutowerks (CP Rods/Pistons, DI Cams, CF Intakes, Coated DP's & Billet Diff Brace), InfinityAuto Turbo Inlets, Mishi Oil Cooler, JB4, XHP S3, BM S3
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