Stage 3 AI OBD2 Performance Chip for Mercury | Plug-and-Play Engine Tuning Module +40 HP / +45 TQRevitalize the Spirit of Your Mercury The waterfall grille represents a legacy of comfort. Now, give it the power of a modern machine. Mercury vehicles were designed to offer "More of Everything"more comfort, more style, and more features. But as time moves on, the factory tuning on these vehicles (especially the 4. 6L V8s and Duratec V6s) can feel outdated compared to modern traffic. Sluggish acceleration, slow downshifts, and hesitation when merging