there isnt really such a thing as a stg 2 - most people go to stg 3 , which is green injecotrs, 3 bar map sensor, -31 actuator, running on p8 gives a healthy 330-340 brake with a nice 1.9 bar mid range boost spike for overtaking with.

i had msd install and set mine up - was very happy with the results and it drove much smoother and nicer than just the stg 1 chip that was fitted prior.