I recently purchased a 2005 WRX . It did not have a turbo heatshield fitted so I have purchased one. As I did not remove the original one I am finding it a bit difficult to work out how to fit the replacement. It is all a bit tight with reservoirs and intercoolers in teh way. The car is standard. What do I need to remove to be able to slide the shield into place ? Is it best approached from under neath the car rather than the engine bay ? Any advice would be greatly appreciated.