shroud and a adjustable electric thermostat/ relay kit. Also installed is a koyo radiator w/ the hi flow billion thermostat ,block coolant passages cleaned up. I like to drive my z hard sometimes boosting 18-20 psi. Using a laser temp gun the temp. at the heads and the out outlet pipe going to the rad is about 195f. on a 90f+ day. The fan only cools the coolant in the rad which is normally around 170f. The car is so must quieter w/o the constant blow of the oem set up and alot easier to acess the front of the engine.