Universal Extreme Accuracy 3 Wire Thread-in O2 Oxygen Sensor The steel gaskets help even

The steel gaskets help even out the flow between the head and header flange to minimize warping

These valve bodies shift quickly and incorporate an adjustable pressure regulator

These kits include the necessary shims and hardware to reinstall your starter

They are ground and thread-rolled after heat treatment to ensure the exacting tolerances that Speedmaster requires for all of their fasteners

Universal Extreme Accuracy 3 Wire Thread-in O2 Oxygen Sensor The steel gaskets help evenThese easy to install oxygen sensors will accurately send data to your Speedmaster digital air fuel ratio gauge. The highest quality components are used to ensure an accurate, dependable reading.