Sounds like you bought someone's problem there... The box should be atleast 1-2 inch clearance from everything, if the engine is too far forward you will have an issue fitting the radiator n intercooler down the track, also if you want to make it legal it needs a radiator support panel across the front of the engine bay, nobody will engineer it, I needed to reenforce my one, and no bonnet pins are also legal u need a standard lock