4x4 60 cv tuning ?

[dkmusic]

ciao dear friends .....i have not find any information on tuning the 1.2 benzina engine ..is it posible ? i read that somebody have change the thortlle body with i bigger one and see some improvements on torque .
does anybody here have done anything for more torque ? ( also have read that with panel filter the max torque goes 500rpm lower)