My fiesta St has been great. I have 1,800 miles on it. Today when I got on it. It pulls until around 4000 rpm in any gear and struggles bad to get pass 4,000 rmp. It is like a huge boos leak or something. I have injen intake, levels front mount, and cobb stage 2. It has been doing fine until today. I am not sure what it is? Any help would be great. I am seeing max 2.5 psi or something crazy. I thought I would ask here first to see what i should look for before unloading map and taking it to dealer. please and thanks forum members.