I know that..... I'm going on the same idea as when people use std calipers and 2wd Cossie discs, it's just that I had the FRS discs in the garage gathering dust so decided to put them to use ... Eventually I'll use 4x4 Cossie calipers or possibly the FRS 1's..... But I'm sure with a whooping 135bhp the std 1's will be ok for a while...lol