I agree with the ukcat comments, the only section (there are 4) you can prepare for ist the first one, verbal reasoning, there is a book out there that teaches you to read quicker, that could help, that section was my downfall, still managed 62x, you definitely cant prepare abstract reasoning! It is scary!!!
that is my opinion, I thought it would be the worst section for me but it was the best and I still dont know why and I am a bit scared coz by the look of the things I might have to do it again! you can prepare for bmat, but not in 2 days!!!
hope that is of any help!