wouldn't raising the compression much over 11.5 stock GTS require the use of race fuel to prevent detonation? when you start getting up in 12 13 compression ratios your getting close to the detonation danger zone on pump 93 oct gas.
also do you have to get it tuned at a shop or can you use your laptop? all ya need is an air fuel/rpm figure and then you can tune it to whatever you need. there are kits that can record that info on your laptop too. tuning your Intake
should get rid of bogging right? I mean if the sensor is not sensing the correct inflow then it should be smiple enough to make the computer think it's getting more airflow right?(the e-manage is a piggy back so it acts on the maf right?)
and has anyone installed the E-manage themselves, just wondering how clear the instructions are and how difficult the actual wiring on it is.
ps just relized why you might want to get it done in a shop. A dyno would really help you fine tune it, beyond just getting it to work normally with your parts.