We got all setup with Cobb and after spending 100+ hrs getting all our base maps ready we are ready to rock and roll.
For those not familiar with E-tuning the process goes like this....we send the first revision, you log & send us data, we send a 2nd revision, you log & send us data. This process is repeated until we are both happy but the usually amount is 10-15 revisions.
What you need
Laptop - U need a laptop to be able to utilize ATR and the AEM wideband logging.
Access Tuner Race - you need to email cobb and get the download link for ATR. ATR will give you access to more logging parameters.
Wideband - if you have anything but stock injectors or stock intake, you need a wideband. but even with stock components i urge everyone to get a wideband....fuel is the lifeblood of your motor and you need to monitor it. Subarus are notorious for developing leaks and the wideband can save your motor. AEM Uegos are ~$165 on ebay and $165 is peanuts to protect your $25k-$40k investment.
Wideband (AEM) Logging Cable - you need to purchase the AEM Logging cable from Busted finger or make your own with parts from radioshack.
To give you a good picture of the car and detail we put into our mapping here is some visuals of the stock mapping vs our mapping
Stock ignition mapping
PhatBotti Ignition Mapping
Stock Fuel Mapping
PhatBotti Fuel Mapping
Phatrons PM (click me)
STi Mikey PM (click me)
PhatBotti Tuning PM (click me)