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Great results from NGK Iridium plugs - 04 745Li

Discussion in 'E65/E66 (2002-2008)' started by petegammon, May 19, 2009.

    petegammon guest

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    I just upgraded my coils to BavAuto's high performance coils and replaced the plugs at the same time. I used Bosch 4+ platinum plugs but was very dissatisfied with their performance. I pulled them out and replaced with NGK's Iridium plugs......they are GREAT. 10%+ better MPG, smoother idle, better performance, faster response. First time I've ever seen improvement from a different brand plug.....well worth the extra time to pull everything out to replace. Cost was approx $8 per plug from Advance Auto.

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