You should see what I'm getting on MondayASR makes a very lightweight yet sturdy subframe brace. If you have the means, I would personally go with the subframe brace, but a tie bar is always a good option as well
http://www.jhpusa.com/store/pc/viewPrd.asp?idproduct=8180&idcategory=637ASR is pretty much the standard in subframe reinforcement for Hondas that or Function 7. But, if you go over i say 19mm you need a subframe brace such as the asr or the function 7
BE CAUTIOUS OF FAKES!