i bought them from ford years ago iirc... something like £68 each i think!! everyone i knew at the time were telling me to keep with standard ones..
one thing i couldnt live with was i bought a vibra technics g/box mount, first i had to re-shape it to fit then second i sounded like my gearbox was fuked, it was horrid! ended up buying a 'group a' one from graham goode