This kit is deigned to remove the OEM fuel pressure regulator and fuel damper assembly and replace them with a high flow, adjustable fuel pressure regulator which is ideal for tuned engines. The kit also re-routes fuel to constantly cycle through the fuel rails before the regulator, this only happened when fuel demand was high enough in the OEM system. Replacement vacuum hoses are also included to re-route for a more stable vacuum reference.Replaced the OEM fuel pressure regulator and fuel damperFits in the original fuel pressure regulator locationIdeal for tuned enginesHigh flow adjustable regulator is capable of handling high power outputsRe-routes fuel flow and vacuum take off for improved performanceThe OEM fuel pump can cause restrictions when tuning engines so Radium Engineering recommend upgrading the fuel pump when using the fuel pressure regulator kit.