[tha5150]

i thought i heard someone say that if i want big bores, i need to add some extension or something. maybe you can help me find some documentation? i cant seem to anywhere.. i did see some to fit an 8.5 for 39 bucks buy now on ebay from china. so more or less, 50 bucks sounds dead on. but this seller said 8.5 and i see other things adversised for the 7 and 8 together. nothing showing 7, 8 and 8.5 ..... so i am led to believe that they wont...