Only from what I read on internet, but i haven't put an uprated one in the RB5 yet as i am led to believe that the stock fuel pressure regulator has trouble with uprated pumps on the classic. Might be worth asking for advice, as i would certainly like to put one in mine to be safe.
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2002 Bugeye WRX Wagon - deceased
1995 555 STi v2 track build
1999 RB5
2003 Blobeye WRX SL Wagon
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