well i still have the stock radiator, fan, and thermostat. would it be a good idea to upgrade? idk if it making it run hot or not but i dont have my downpipe hooked up and the exhaust and the wastegate dump just pumps out under the hood, and the past two days when i get out of the car i hear the overflow bubbling. well today on the way home from a friends house the temp jumped all the way to red. luckily, i was by my mother-in-law's house so i left the car over there. this time i didn't hear the overflow bubbling? i was gonna go with the go-autoworks radiator, slim fan, and 160* thermostat, along with flushing out the radiator and putting new fluid in. this will also free up room to run piping and a filter to the turbo. i'm hoping i didn't run it hot and warp the head. im getting the downpipe problem fixed this week so i wonder if the exhaust staying under the hood and the turbo sucking it in is the only reason why its making it heat up.