Andy2174 Astra SRI 2.0cdti

[tucpal]

glad it feels better for you now
but as said if any black smoke or even white smoke is seen or check engine lights or rough idle etc
then tune it down and you will be a lot safer and happier for it
most problems occur by people maxing the settings out on these boxes and looking for unrealistic torque and bhp figures
that there engine simply can not cope with and over fueling the fuel rail over stressing the turbo and gearbox
and clogging the dpf and egr or kicking the car into regain continually or even limp mode.
the factory settings these boxes come with are usually a nice safe all round option for power torque and mpg
so stick with the setting options you have been sent with the box
if you have been given three maps etc then find the one you like and stick with that one
and you should see good improvements all round and stay safe and have fun and a better drive
then if you really want to know what the car is doing get a dyno run and they can tell you exactly what improvements you have.