I purchased my car used with 2000 miles on it back in January. Its a 2011 WRX premium 4 door. I do have factory SPT exhaust and also the trunk trim. Inside I have the momo shift knob. Does this mean that I have the optional STS option? I asked the original owner and he was unsure. I drove an 09 and a 10 WRX and the shifts felt like they were out of a big rig whereas mine feels a lot better (still not as short as it could be though). Any insight would be helpful, Ill take pics if that helps. Thanks in advance guys!