Jameshow
Veteran
Having driven the little car now with the new slightly larger bore exhaust.
It seems to have a little bit more torque low down. It's happier to pick up speed in top gear from low revs.
It not massive gains being a normally aspirated 1.2ltr 3 cylinder engine, but there is a little bit more. I suspect power has increased but that will be higher up the rev range
Power is torque x rpm so if it has more torque it will be more powerful.