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BKR9EIX spark plugs instead of BR9EIX

Old 12-28-18, 05:23 AM
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BKR9EIX spark plugs instead of BR9EIX

I've been recommended to use BR9EIX plugs in my car but I couldn't tighten them as they are shorter than oem plugs. From what I see there is not enough room to make it fit with a modified socket without risking the socket breaking. In the end I fitted them with a spacer. However I wasn't comfortable so I did a little research and BKR9EIX plugs (commonly used in EVOs) are almost identical and same length as oem plugs. The only difference in spec sheet is BKR is projected and BR is non-projected.

I've searched the forum and BR9EIX seems to be the commonly used plug. Anyone have any experience with BKR9EIX plugs?
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Old 12-31-18, 04:11 AM
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Here are some pics to show the fitment issues with the BR9EIX plugs.



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