S13 kit is for the 4 lug spindle

To resolve this

5mm) internal pipe diameter

FPR8 Low Pressure (LP) Fuel Pressure Regulator Suit -8AN (Black) TS-0404-1132

360-degree mounting options on V-band

FPR8 Purple JR20 S13 kit is for theThe Turbosmart FPR8 Series provides market leading fuel control and response via true 1: 1 ratio and superior flow and bypass capacity for vehicles with 8 8AN fuel systems. Utilising our Stainless Steel Valve Seat & Milspec Diaphragm the FPR8 Series is suitable for all Fuel types including Race Fuel and aggressive leaded fuels. Our FPR8 Range includes 8AN inlet and outlet and return fittings and is available in Standard (35psi to 80psi) as well as LP