Greddy sells the recirculation fittings for the type rs bov.............which size fitting do i need to buy for it to work with the stock intake and bov pipe?????

 

just check the pipe that is there and get the size of the dump tube. That will tell you.

 

Can't you use your old tube that recirculated? I did that and it seems to be working just fine. Or you can take take the old pipe in to a part store and measure how long you need it to be. A low pressure rad hose can work