I have a Ducati streetfigther 848 and I hesitate between the termignogni slip on carbon with the air filter and the ecu. Or the Austin racing Gpr1 carbon with db killer and performance air filter. I want the best performance out of my bike and I know that if i’m buying the Austin racing exhaust I would maybe need to flash my ecu. Can I flash my ecu myself? And what is the most good looking and sounding exhaust between those two?