no mods required, but the guy at the workshop said it was a bit of a bitch to fit. Wasnt a direct bolt up- really had to work hard to make it all line up
Also, mine wasnt welded into place properly, so it is about 5-10 degrees out (pointing downwards)- not really happy considering the $$ i paid, but it still towed fine. Took my evo to canberra to compete in the evo nationals- was about 15 hours each way and no dramas