Details from Nostrum site:
Subaru FA20DIT High Pressure Fuel Pump
H136-0571
2012 – 2016 Subaru BRZ & Toyota GT86
2012 – 2018 Subaru Legacy
2014 – 2018 Subaru Forester XT
2014 – 2019 Subaru WRX
~40% increase in fuel capacity vs stock
Capable of 600+ whp on E85
Ethanol compatible up to E100
Brand new OEM cores
Corrosion resistant coated internals
All pumps are dynamically tested

My 2015 Subaru WRX will be parting in for the 2019 year. Be sure to subscribe to follow the part-in throughout the Loud AF 500 series.

******* Where I got my mods ********
https://www.newprovisionsracing.com/

3 D Zero WRX Parts List:

-FP Blue Turbocharger External Wastegate
-Killer B External Wastegate headers w/ 38mm Tial Wastegates
-Invidia Gemini (R400) Single Layer
-Cobb SF intake
-Cobb flex fuel
-GrimmSpeed 3-port ebcs
-Stock BPV
-Process West verticooler TMIC / charge pipe
-Tic TGV / EGR
-IAG aos
-Killer B catless Jpipe
-DW300 fuel pump
Nostrum HPFP
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The_Red_WRX
  / the_red_wrx.  .

The Red WRX part list:
Grimmspeed tmic
Grimmspeed charge pipe
Grimmspeed catless jpipe
Corsa catback
Grimmspeed ebcs
Tic tgv deletes
IAG egr deletes
IAG street aos
Ets intake /w box
Dw300c
Cobb Flex fuel
Boomba bpv