I have basically a hahn stage II but i peiced it together.Hahn s16g turbohahn manifoldHahn oil linesHahn DownpipeWalboro 255lph fuel pumpBlox FMU1g BOVCustom FMICCustom pipingAutometer Boost, Oil Pressure GaugeAll Hahn gasketsto be installed:Zeitronix wideband o2Autometer Fuel Pressure Gauge