I wonder when car(Saab) want to modify hp and torque, just install programe in ECU but don't have to change engine block?? For example, in my country, dealer adjust 9-3ss 175 to 195 hp, and this block still have 150 hp to more than 200 hp in Aero. Will it make more erosion in engine? and in long term using, How the engines durability and maintenance? and Doing this will decline the safty factor?