i'm still not convinced that your problem is your rad rob.....! im sure its a head problem (should have bought my spare one from my other forged engine lol 0 rob you also have a hks fcd to stop your standard ecu giving fuel cut a walbro fuel pump and it does have 40 mm lowering springs and vented discs ,it also has an air filter relocation kit... and the hks adjustable actuator set to 1 bar boost pressure is a must if he wishes to keep up lol.. im assuming the mines ecu will stop your fuel cut yeah? Ive just bought myself an oil cooler but it doesnt actually require one for 15 mins mate, and if its your first track session just go out take it easy and enjoy it mate