heatshields
there is only one heat shield which sits behind the engine, that shouldn't be catching on anything, it sits pretty much on the exhaust manifold, are your silicone hoses twisted and and forcing the shield ut of position
the foam enclosure requires quite abit of fiddling to get it in, very fiddly, you might need to bend the bottom under to fit it in snug, and then adjust it to seal all the air gaps, dont bin it, its an integral part of what makes the ITG good. isolating the engine bay heat from entering the filter is key to this intake.