Hey, I just bought a 2019 Corolla XSE hatch 2.0L. I installed an Injen short ram intake and borla resonator back exhaust. Sounds and runs great but I’m still getting flat spots in the acceleration. I am hoping a JDM brand performance ECU chip can solve some of this and improve the performance and fuel efficiency as well as that company so advertises. I have tried to research the chip with reviews online but to not much success. Any ideas as to what I can expect from adding a stage 3 chip with this engine? The company also claims it won’t void the warranty and will improve power up to 40 hp. Not sure what to think. Lol. I just want smooth acceleration and power instead of these damn flat spots when I get on the accelerator at times.