I know you can definitely put the CS rear bar on a Fiesta. Two of my friends have done that, and love it. Apparently some of the TB under-frame braces also will bolt on to the Mazda 2. There were people definitely interested in the CS adjustables too, but I haven't seen any follow up as to whether anyone went for a set. That FRPP handling pack upgrades Fiestas with new struts and lowering springs made for eachother for only $299.00. Can't come close to beating that. There was a fitment issue for 2s regarding the struts though. I couldn't find where I found that thread, but I know the thought was also that the springs would not be quite right because of the discrepancy in load weight.