Haven't done this one myself, but I wouldn't count on it being a straight swap. Even though it's the same EA888 family, the Macan's is a longitudinal install, so the cover is shaped around a different intake manifold and different routing for the PCV and charge pipe. The Mk7 GTI's plastic manifold has its own stud layout, and I'd be surprised if the bosses line up exactly just because they look similar.
Before you buy, I'd measure the stud spacing on your manifold and compare it against photos of the Macan cover's mounting points, or ask the seller for the hole-to-hole measurements. Also check clearance around the coil pack area and the pipework on the Golf side.
If it doesn't fit cleanly, it might be worth looking at what people have done with the Mk7's own cover instead. Painting or wrapping it is a lot less hassle and would still wind your Porsche mates up.
