theres not many shops that specializes in DSM cars in houston, theres Inline racing, they work on dsm's and honda's i see more hondas come out of there then dsm's... but they are a pretty good shop. the only one i would recommend for you to use.. then there are the side builders that know more than most shops do but do have the cash to open a shop.lol i know alot of side builders if you want to go that route. if you have any other questions just ask. good luck with finding the right shop.
Post edited to answer the question and remove bashing-L2RTSIAWD