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Thread: RRFPR

  1. #1
    o uncola o's Avatar
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    RRFPR

    When do you actually need an RRFPR? If you have a different wheel in your supercharger and an aftermarket intercooler do you need one? Can you still use the stock injectors? I am confused.


  2. #2
    Dave Sharp dav_dman's Avatar
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    you got it right..when you use an external IC. It reduces restriction, increases airflow and cfm, air density, and more power.

  3. #3
    Banned User
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    depends a bunch i would say. i have an 08 px with real basic stuff (fizzle intake, rad4, rear exhaust) and i need one especially in the cold air

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