Plug-and-Go Temperature Sensing Reducer

This pigtail resistor kit simply plugs into the coolant temperature sensor in the cylinder head on 600 ETEC, 800R, and 800 ETEC and makes the ecm think the engine is running 20 degrees cooler. This essentially gives more leeway before the sled pulls timing which happens quite often. The factory has the ecm set to pull timing way before the engine is truly too hot and this cures a lot of rpm fade problems. This makes the ecm read one bar cooler on the gauge so remember if it gets over 5 bars it really is getting hot.