Hi I have a problem looking just put some test pipes on my 370z but the check engine is on when I'm driving you spend a lot of gas and shift knob shakes a lot at low rpm and birds is above 1 rpm and sometimes almost reaches 1 / 2 rpm do not know why that happens, you may hear an we need
Oxygen Sensor Extension Bungs to prevent that? that I can help you plan to remove and put all stock