VS - N54 Flapper Delete Fitting

NO MODIFICATION NEEDED, this plugs right into the valve cover and uses two o-rings that are provided for perfect tight fitment  Flapper Delete Fitting for N54 WILL NOT WORK WITH RALLYROAD FUEL RAIL THAT HAS A RETURN FUEL SYSTEM  AS SHOWN IN PIC (NOT THE PURPLE FITTINGS)   also known as the flapper delete fitting for the n54 powered vehicles , works better than competitors variant which only use one Oring.