Originally Posted by a13n0rma1
So... how much of a reduction in usable rate is it going from an STI rear sway to a WRX bar?
Not sure I understand this first question. You mean what is the difference in stiffness between the OEM sti bar and the OEM wrx bar? Answer-none- they were both 17mm bars in 2006, iirc. If you're talking aftermarket, then it just depends on which one you buy. If you mean how much different is the rate that the bar has to bend at in each installation, I have no clue.