Put in the new water pump and engine ice and went on a nice long ride today...I'M SOLD!!!! The 312 has never run cooler! When I used to spend 50% of the ride making sure I didn't overheat, the temperature gauge started to blink once, after sitting at a stop light for about 5 mins it bumped up and then as soon as I started moving again it went right back down. I COULD NOT BE HAPPIER! Highly encourage this for anyone with an F4.