Stage 2 AI Performance Chip Module OBD2 for Acura – Adaptive Power & Fuel EfficiencyPrecision Performance for Your Acura You drive an Acura because you value "Precision Crafted Performance." Whether its the high revving spirit of a VTEC engine or the torque heavy demands of an MDX or RDX, your vehicle is an engineering marvel. However, factory ECU settings prioritize generic mass market parameters over true performance, effectively "detuning" your engine. The Stage 2 SMARTTUNE with AI Technology is not a generic one size fits all