took it to autozone and found out it was the rear o2 sensors so...we called some local "mustang" shops..and i asked them if they could turn them off b/c i have an o/r h....and he was like the best thing to get is the diablo predatorand turn them off...which..we were thinking of getting one eventually anyway my hubby wants to adjust the shift points etc ...ne way looks like i will be buying one soon...

 

when i saw u had an offrod midpipe i knew that was the problem since post 1