front sway bar on a GSR is the same as a TYpe R, rear is different, i got the comptech rear tie bar/sway bar combo and yeah it makes a huge difference, more then my TIen basic kit (which is nice coilover set up) did, the comptech kits, allows your abs lines to go in the tie bar, so its not zip tied and it makes the rear sawy bar same siza as a type R (from what i remeber 22mm i think)..