thats crap the problem was overheated on a oem ep3 radiator and the mugen cap not releasing till 1.3 bar and the top of the rad split the seal so we put the coolant below that point and tried not to stay static for anytime and it was ok but it has no overflow tank either which we only just discovered so lucky it broke the way it did or i would have been leaking coolant and not known
just got a new koyo rad and everything else for the coolant system dont want to wreck the engine lol