
installation is awful, i had to go with oem fan holes because the radiator bracket was out of order. The heatsink is too thick, causing my passenger OEM fan to melt from the heat of the header. Although it doesn't touch the collector, it's so close that the heat has started to melt the fan blades. I use a Perrin Equal Length Big Tube Header. I contacted Mishimoto and their solution was cut into the car for a bottom bracket modification.