TÜV combination DTH with APR

Hello together, I don’t know about the TÜV topic so much…I am very interested in the DTH Reaper V4 for my Cupra 300. The questions I ask myself are whether I get this in combination with APR products? The open intake, Turbo Inlet, LLK, Stage 1 (+ DSG software) and the HJS Downpipe with 200 cells Kat and Sport-OPF are planned. Is everything planned gradually, but I wanted to inform myself in advance.