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bosh +4

This is a discussion on bosh +4 within the Firebird / WS6 forums, part of the Vehicle Specific category; how are the bosh +4 in a 98 t/a...

  1. #1
    Drive it like its stolen gillahoon's Avatar
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    May 2006
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    White
    1998 Trans Am

    bosh +4

    how are the bosh +4 in a 98 t/a

  2. #2
    Drive it like its stolen gillahoon's Avatar
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    May 2006
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    42
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    109

    White
    1998 Trans Am

    how are the autolights platinums

  3. #3
    SUPREME member-oderator oneBADDz's Avatar
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    Custom Slate Blue
    99 B4C

    You can use the +4s, I never had any ill effects when I did. It's cheaper and better to just use NGK tr55s though

  4. #4
    Slow'er'Ass Mr. Luos's Avatar
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    Aug 2005
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    23,785

    Red Tint Jewelcoat
    2008 Trailblazer SS

    Bosch = no good.

    The +4 plugs are a gimmick in my opinion.
    One electrode will have a more accurate spark.
    2008 Trailblazer SS
    Yank PTB3600, Kooks 1 7/8" LT's, 4" intake, E-fans, Magnaflow, Sonnax kit, tranny cooler, tune.
    Lowered, HID's, tinted.

    1999 Pontiac Trans Am WS.6 #1747 SOLD
    531.1 RWHP 481.3 FT/Pounds all motor.

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