I can not put a turbo on my v8 beetle

i need help for some strange reason i can not put twin turbos on my v8 beetle

If u have downloaded somebody’s tune and then removed it it will sometimes glitch out and won’t allow u to put that aspiration parts on the car. U may need to go buy another car. If u plan on buying another tune for it make sure u purchase all of the aspiration parts for it before u do to avoid this problem in the future.