I've recently started modding my 11 hatch wrx. I was openEcu TP stage 2 with just a catted TurboXS dp. It ran perfect, but I have no gauges so I went with the Accessport v3. I still went with TP stage 2. Now I started getting the low dipping idle at or coming to a stop with the Accessport hooked up. I unplugged the Accessport and no more idle issues. Next I bought a Magnaflow cbe which drones horribly at any speed with the gas peddle down. I'm getting a vibrant 12 inch resonator put in this week to see if it helps. No leaks under the car either. I'll keep everyone posted.