Andy2174 Astra SRI 2.0cdti

[tucpal]

good the standard settings will most likely be more on the eco side or a middle safe setting
and also what you have it set to greatly affects the BHP torque mpg etc
there claimed figures are usually at the max setting that box is supposed to give 15 to 20% increase on max settings
so you will have to work out how to adjust it to a higher setting but not over stress the fuel rail and unbalance the engine
the only way you find out what bhp you have is by getting a dyno run done
but 35 bhp from there standard box does seem a very high quoted figer
as above set it to power 2 and see if that makes a difference.