FPF fuel pressure regular are direct replacement to the OEM. Each fuel pressure regulator are made to function just as the same as the original spec such as PSI level.
Meet or exceed OEM performance and durability
Drop in replacement design
Fuel Pressure Regulator For 2009-2016 Yamaha R1 and R6 320KPA or 48 PSI
Description said Yamaha R1 from 2002 to 2009, but did not fit my 2003 model...
Bought one with the pump just to find out my model doesn't have one in the pump assembly.
Great fitment and solved a huge issue. Would recommend doing this before replacing the entire fuel pump