ok .. so i bought a hotshot header for my s13.
now there are 3 outlets
1- goes around back of the motor to the SVC
1- is the o2 sensor
1- emission box
now the location of the O2 bung is on the tube that follows from the 2nd cylinder.
wheres in stock the 02 sensor location is placed so it can get readings from all 4 cylinders.
just noticed this .. would it make any difference in the 02 reading?
