When talking about exhausts systems in cars, one can not forget the significance of oxygen sensing units and their duty in making sure efficient engine efficiency. This is where an O2 sensor spacer, also generally referred to as an oxygen sensor spacer, comes into play. To recognize the need for http://ezproxy.cityu.edu.hk/login?url=https://www.o2sensorspacer.com/products/90-degree-universal-m18x1-5-o2-sensor-spacer-with-mini-cat