eerr this one asian site had a brake kit...not too sure how it worked though...
http://www.geocities.com/talingchan_.../taling01.html
and since it being an asian site...i wouldnt really recommending to order from them....might take forever to get here
and are u just saying u want your car to immediately stop after u let off of gas? i dunno, i like it when my car keeps rolling for a couple feet...thats how i make tight turns
unless im trying to drift haha