I'm pretty new with Evos and my first mod I want to get is EM. I had a WRX and loved my AP. How does the Cobb AP stand up against the other EM systems?

 

I think it is the best out there. had it on my subaru and now on my mitsubishi

 

can the access port do the same thing as standalone engine management system like AEM?

 

The COBB AP can not do everything that an AEM can do however it looks to be an Amazing Tuning Tool. The AEM can control All parameters and has Outputs for Nitrous, Meth Ect.... The Cobb AP Reflashes the ECU for you and allows you to change between other MAPS and Allows for a Custom ProTune on the Dyno. Setting up the AEM is the Biggest PIA that is a Drawback for most I have an AEM on my 3000GT VR4. The AEM is Primarly used for a SD(Speed Density) Setup that eliminates the MAS restriction going to the turbo. This is Primarily accomplished using a MAP and IAT Sensor that computes the Air intake Charge (Density).
If you are not looking at going to a Full Race Setup the COBB AP looks like an Awesome Tuning tool. I went through the Pain of Multiple Piggybacks on my VR4 due to no Reflashing of the ECU Avalibility before I went to the AEM Standalone. I look forward to the Install of the Cobb AP in the Near Future and I dont see any Complaints reading the threads on here just Soild Gains.

Deak