I have the Tein SS on my 6gen coupe, but I believe that the EDFC dosent fit in the 6gen. Check Tein's website jfor application info. I believe that the motor wont fit ontop of the shock...expecially in the back. Also EDFC only adjusts firmness not ride height, so it may not be as helpfull for helping you not bottom on crappy roads as you may think.