wot u will probably find is that it will pull constant where the boost is holing still rather than droppin and liftin then droppin as a fucked actuator can do...
will also b faster if u run more boost... ie 10psi...
but id still get the set up checked out on CO machine and timing etc after u chnge it.
MFi cars set up change alot matey... i used to take mine to Jano every couple of weeks to chuck it on CO... quite often settin had changed...
cant be helped really....
ud prbably wanna run round 3- 3.5 on the CO... also get better intercooler...
welll worth doin!