I recently installed long tube headers in my f150 and while I was at it I decided to change my belt. But as soon as I got done installing them the truck has lost power and occasionally shakes violently. I ran the check engine code and all that pops up are O2 sensor malfunctions(which are turned off with my tune)
any help would be appreciated, thanks

 

Which 02 DTC's are coming up?

 

P0135 p0141 p0155 p0161