Im not sure about the recaro railes never tryed so couldnt say!..also on the drivers seat you wont be able to use the windy bit on the side of the seat that lifts you up and down abit also you will find that you will sit up abit higher then the stock steats but i didnt mind it tbh if you are 7foot and weigh 18 stone then dont bother wasting your time doing it as you wont fit under the steering wheel haha