my freind has a t/b for his saleen s281, it is the regular t/b but he got a bbk 75 mm t/b for it and he is giving me the old one, i was wondering if a i am able to fabricate the mustang 4.6 t/b to the focus! i saw the spi t/b fab but it is alittle differnt for the zetec...basically i need help or any idea...