avioni

Its felt off and on randomly since nearly stock after installing testpipes and rev9 exhaust. A short time after that i noticed for the first time the car would kinda fall flat on power at 3k instead of starting to pull while cruising. Some days it felt fine. After this i met the tuner who suggested it could be tune. So i waited till i had stillen gen 3 intakes, and isr long tube headers to go tune which I did but the car still felt ornhad the same symptoms. Ever since i have replaced all coils, sparkplugs, compression checked fine, no vacuum leaks. As it sits tye car has isr headers, invidia n1 exhaust, walbro 525 hellcat, id 1050 inyectors, Last week i installed a SC kit and while the tuner is sending me tune files he mentions the engine load % is going crazy and causing the tables to switch to wrong tables at any given time so tuning is impossible like this.