Universal Extreme Accuracy 3 Wire Thread-in O2 Oxygen Sensor They are ground and thread-rolled

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

and durable

Almost 10% larger that stock intermediate piston

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

These valve bodies shift quickly and incorporate an adjustable pressure regulator

Universal Extreme Accuracy 3 Wire Thread-in O2 Oxygen Sensor They are ground and thread-rolledThese 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.