So I just installed Borla Long Tube Headers, The install was a true pain. Now i have a terrible vibration in my steering when driving and at 1,100rpm it's god awful. Any tips or pointers it seems like borla forgot to put a dimple in the header,Also my check engine light came on according to Borla it will go off in 300-400 miles does this seem correct? do you think a re-tune is in order? I put on Borla Long Tube headers Off-road mid-pipe and borla stingers?