Okay, backup done. Time for the actual upgrade. Fired up the “Modify Tune” thing. Options scared me a bit: Shift Firmness: Cranked it up to “Hard”. Wanted that clunk. Rev Limiter: Bumped it just a hair over stock. Nothing crazy. Fan Temps: Lowered them so the fans kick on sooner. Arizona heat ain’t no joke. Throttle Boost: Set this bad boy to “More Aggressive”. Felt right. Chec... https://kralmod.com/diablo-tuner-5-3-performance-upgrade-tips-for-better-power/