mine came with the kit, and i am pretty sure nobody mass produces them for our cars. i think you are best off getting one made custom. are you piecing together a turbo?
man, i would be rip **** if someone pulled that on me! the msd btm that came with my kit is junk and im sending it back to msd soon. they will fix or replace it. i'd go to wherever you got it and stay till you get an answer you like!