Sounds like you have bought the completely wrong one to me People seem to be shouting about Ebach ones been the only ones that fit properly, but they dont make em anymore
If the strut brace doesn't fit either way round, and it catches the master cylinder reservoir, and also cant shut the bonnet, my guess would be its the wrong one....Thom
http://www.google.co.uk/images?q=golf+gti+strut+brace&oe=utf-8&rls=org.mozilla:en-GB:official&client=firefox-a&um=1&ie=UTF-8&source=og&sa=N&hl=en&tab=wi&biw=1280&bih=607Seek and ye shall find.