I look at it this way. Pushing more power out of an engine by "Tuning" it electronically, beyond what the factory set parameters are, is the equivalent of using a pipe or "cheater bar" on a wrench. (Crescent, socket, pipe, open end, or otherwise).
You are deliberately pushing the unit beyond what the designers had originally intended. The warranty should be voided in either case.
You are deliberately pushing the unit beyond what the designers had originally intended. The warranty should be voided in either case.