Originally Posted by Power6
The difference is heated or not heated mirrors. 08-10 STI has unheated, 11+ has heated mirrors. Heated have a 10-pin connector, non-heated have an 8-pin connector.
They are easy to re-pin to another connector housing, but if you are buying whole mirrors you'll want to get them to match whether you have heat or not.
yeah, I realized that once I took the glass off the mirror. I ended up ordering a set of 2011 STI housings and I will just transfer the required parts from my WRX mirrors. I debated pulling the wires for the LEDs out of the harness and transfering them into my WRX harness but I couldn't get the damn pins out.