TR Adjustable Fuel Pressure Regulator (PRo) Kit for Subaru Sti 2008-2015 With

   Many customers with 2008-2015 Subaru STi’s have experienced and complained about fuel hesitation from their stock pressure regulators and fuel lines. While the hesitation is slight and might not be a problem for regular drivers, us car enthusiasts find it quite annoying and would rather for it to go away once and for all. Here at Tomioka Racing we had a chance to repair a 2009 Subaru STi with this exact same problem. When we tested the fuel pressure of this 2009 Subaru STi found out the pressure was only at 15 psi during idle, then it would spike to 28 psi, and then come down drastically. We offer the solution to this problem by replacing the Fuel Pressure Regulator (FPR) and fuel lines with an aftermarket performance FPR and fuel lines.


   This kit is from us here at Tomioka Racing and it comes with pre-assembled lines,  an adjustable fuel pressure regulator, the fuel pressure gauge, vacuum hose, and also vehicle specific fittings are provided. The lines are fuel resistant nylon braided hoses which are pre-assembled with quick connectors which are 100% bolt on to the stock connection. The fuel pressure regulator itself is adjustable up to 8 bar, constructed from billet aluminum with a 33mm diaphragm, and includes the mounting bracket and pressure gauge attachment.