Spark plug for cobb stage 2.5
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This is a discussion on Spark plug for cobb stage 2.5 within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Should i go a step colder or are the oem plugs ok?? Im at stage 2.5 . Running 18-19 psi ...

  1. #1
    Registered User flabele's Avatar
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    Jun 2005
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    Spark plug for cobb stage 2.5

    Should i go a step colder or are the oem plugs ok?? Im at stage 2.5 . Running 18-19 psi with the vf-34..Also is it safe to use those fuel injector cleaners with the sti pink injectors??? Thankguys
    My money pit

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  3. #2
    Registered User Needles's Avatar
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    Nov 2002
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    Long Island N.Y.
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    305
    Yes go one step colder.Your suppose to change to a step colder plug for every 100HP you go up.As for the fuel injector cleaners on the Pinks.I do know

    Stg 2 06STI
    02/04 WRX MSPT Tuned - 18g(DEAD)

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