Thanks for the replies, have been tossing up whether to go with the furious cooler kit or the new pwr heat exchanger. If I go with the furious kit I am wanting to put it behind fog lights so in winter I am hoping it will act a little like a heat exchanger and get up to temp quicker as it gets quite cold where I live. I am not sure about overheating though in normal driving conditions with fog lights installed as summer also gets quite hot 40+ degree days. I know the fog light can be taken out but I quite like the look of them installed. 100% success rate sounds good so furious kit is looking good and the only way ill know is to try it.