Hello all, I've read for hours about O2 sensors and their problems but this one is a little beyond me: I have an 06 GT with a BAMA performance 93 octane tune, an off-road X pipe, and a Magnaflow catback (and 3.73 gears and a Steeda CAI if it's relevant). I had slow response codes from the front O2 sensors that kept coming back every hour or two of driving, so I replaced them and all was well for almost 3000 miles and now I have the code back for one of them (I believe it's the one on the manifold). I don't have headers (I have stock manifolds). I've spoken with mechanics and all, but nobody seems to understand what the issue is or why it seems to be 'eating' O2 sensors, so if anyone can help I'd REALLY appreciate it. Thanks!