YES! Exactly!ice445 wrote: ↑Fri Oct 19, 2018 8:19 pm Piggybacks are trash purely because they can't alter stock fueling. Given how lean the engine already is (the engineers optimized it for fuel economy and emissions at part throttle), you're basically asking for things to break. At least with a good tune they add a bunch of fuel to make up for the shit they do. That way only horrible timing curves that don't account for sweltering IAT's are going to cause any damage.
Increase your boost, maintain 14.7:1, increase EGTs, reduce the threshold to spark knock and preignition and constantly FIGHT the airflow/acceleration/torque limiters in the ECU...yeah a piggyback is a real treat. Every single flash tune I've tried is vastly superior to any piggyback I've tried in every single way.