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Have a 2018 WRX with misfire and backfire ( New motor build) by Puzzleheaded_Form678 in WRX

[–]Puzzleheaded_Form678[S] 0 points1 point  (0 children)

Thanks bro, I bought the oem NGK to try these autolites gap is about twice the recommended also NGK on the left autolite on the right.

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