STM 2G DSM Fuel Pressure Regulator Kit Select::Purple Fuel Mini Please confirm which size coupler

Please confirm which size coupler you'll need from the bottom pipe to your intercooler outlet

QTY:4  OEM quick release injector plugs

sold separately)

This is a perfect match for the STM O2 Housings and Test Pipes

STM 2G DSM Fuel Pressure Regulator Kit Select::Purple Fuel Mini Please confirm which size couplerThe STM 2G DSM fuel pressure regulator kit includes all fittings, hardware and line to go from your fuel rail to factory style or 6AN outlet regulator and back to the return line. Includes the STM 2G fuel rail fitting for a direct fit to your fuel rail. The mini Fuelab regulator is available in your choice of 6 colors and of course, the whole kit is E85 safe! We also include the miscellaneous clamps, zipties and stainless bolts you'll need to save a