Catalytic Converter

Now a big concern is a bad catalytic converter because if your converter is clogged its a loss of power and engine performance overall. The Catalytic Converter is basically an exhaust system filter of bad gases. When that goes bad it must be replaced because it will cause you to fail the state emissions test. To remove the converter the Nissan 240sx must be lifted at a workable height to operate. The converter is located near the beginning of the exhaust system on the left side underneath the car. There should be four bolts holding it to the rest of the exhaust system, two in towards the front and two towards the rear. If it is an older Nissan 240sx, more then likely the exhaust bolts are extremely rusted, so you may have to heat them, if not torch off the bolts. Once that process is done, you may then remove the convertor. With the new convertor, put it in place with the new exhaust gaskets that were given with the new convertor. You will need to get new bolts and nuts to tighten the convertor because the old ones will be no good anymore. After the bolts are tightened up, the job is complete.