-Make your subwoofer enclosure easily removable and take it out before you go racing
-Since you have so much money, just mod your car a little bit to get more power to counter the added weight
-Get somebody who weighs a lot less than you to race your car
-If you're fat, lose some weight, maybe diet and exercise
Not that you'll even notice the weight of a modest system. Driver error could easily make a much larger difference than the extra weight would.
I do believe this thread was created to show off your car, because that was a really stupid question in the original post.