Im sorry I didnt clarify the set I did was a pair of Boston Acoustics. They were 8 inchers. The kit came with two pairs of surrounds. One pair for shallow cone and one pair for a deeper cone Im guessing. The kit came with shims, glue and replacement dustcaps. The new surround were the same style as the old ones so the went fairly easy. I dont know what the Bose uses. Theres some Bose surrounds on Parts Express. If you know the size of drivers of the 801s, 901s or the 301s use they might be the size you need. You got a picture of the old surround foam from the side?
Steve