Just wondering if anyone has set up a manual transmission cooler or other cooling options for the nissan boxes. Mine is getting to 250F (121C) so I need to try and lower the temp somehow. I have already lagged the exhaust where it runs beside the gearbox which made a difference to how fast it gets there but I reckon it is still too high. I use Nulon 85w140 which is a GL-5 oil and the box is an SR20 with PPG helical dog set 1-4 and std syncro 5th. Any advice / experience regarding cooling set ups or additives to reduce friction is welcome. Thought some of you Guys with under trays might have temp issues?