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  1. #1
    Established Member Two Rings
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    Apr 30 2018
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    First time changing spark plugs - questions (15' 8V S3)

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    First time changing my spark plugs at 70k miles - car is stock

    Anyone know what the OEM part number is? Seems to be a few different ones listed on Audi's parts website.

    See a lot of posts about running RS7 plugs but also seeing that if the car is stock theres no need; are there any plugs that would work for stage 2 and stock configuration? Will probably go stage 2 at some point, but no idea when.

    Need to gap or good to go out from the box?

    There a need to change coilpacks? Still running original ones.

    5/8 spark plug tool is the correct socket size right?

    TIA

  2. #2
    Veteran Member Three Rings Eli0073's Avatar
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    Jul 17 2020
    AZ Member #
    555366
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    USA And Finland

    Rs7 sparkplugs sucks. They failed. The ground electrode will snap and go into your engine. Ask me how I know they do. Definitely stay away from Rs7 ones.

    Sent from my IN2017 using Audizine Forum mobile app

  3. #3
    Veteran Member Three Rings Eli0073's Avatar
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    Jul 17 2020
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  4. #4
    Established Member Two Rings
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    Apr 30 2018
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    CA

    Quote Originally Posted by Eli0073 View Post
    Any reason these over the Laser Platinum Spark Plugs?

  5. #5
    Veteran Member Three Rings Eli0073's Avatar
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    Jul 17 2020
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    They're cheaper and work fine.
    I'm on a stage 2 running E85 no issues.

    Sent from my IN2017 using Audizine Forum mobile app

  6. #6
    Veteran Member Four Rings o1turbo30v's Avatar
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    Feb 06 2012
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    87767
    My Garage
    Cars, guns, nuts and bolts
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    Quote Originally Posted by ilikecookies View Post
    Any reason these over the Laser Platinum Spark Plugs?
    Laser platinum are OE, that can be changed at OE intervals, the 95125 ones are an "upgrade" with a shorter change interval
    Stage 1 more than you RS3

  7. #7
    Established Member Two Rings
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    Apr 30 2018
    AZ Member #
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    Location
    CA

    Quote Originally Posted by o1turbo30v View Post
    Laser platinum are OE, that can be changed at OE intervals, the 95125 ones are an "upgrade" with a shorter change interval
    What's the change interval for 95125? Looking at the Rock Auto page it seems its "suppose to last longer" than the OE?

  8. #8
    Veteran Member Four Rings MikTip's Avatar
    Join Date
    Dec 25 2004
    AZ Member #
    4604
    Location
    Earth

    If your not stage 2 now...dont put in stage 2 plugs. Get the OE plugs from RockAuto cause they sell them for the lowest price around.

    Once you go stage two...switch plugs.

    Changing spark plugs is simple
    Last edited by MikTip; 09-18-2023 at 04:53 PM.
    2015 S3 with 210,000 miles with new 2019 Q5 motor. Still going!

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