One step colder spark plugs
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This is a discussion on One step colder spark plugs within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Hey guys, I have a 2012 wrx with an AEM CAI, Invidia catless TBE, and Torqued Performance Stage2 tune. My ...

  1. #1
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    One step colder spark plugs

    Hey guys, I have a 2012 wrx with an AEM CAI, Invidia catless TBE, and Torqued Performance Stage2 tune. My question would if do any harm running a set of one step colder spark plugs or just avoid it completely?

    Thanks

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  3. #2
    Subaru Newb MainFrame's Avatar
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    It shouldn't do any harm.. but it won't do you any good either. Personally, I would just stick with stock heat range.

  4. #3
    Registered User nsibanez's Avatar
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    One step colder isn't recommended until you're 100 horses over stock according to rallysportdirect

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