Stinger Exhaust Gas Temperature Thermocouple; Length 9 in.;Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. Supercharged and turbocharged engines use EGT sensors rather than air fuel sensors due to the volume of fuel being passed through the engine. Racepak's Stinger series of thermocouples are designed for use in gasoline and methanol burning engines. These probes feature a quick reacting hyper tip, to ensure the quickest response time possible.