NGK Iridium IX DCPR7EIX Spark Plugs for 1999-2015 Harley Davidson Twin Cam (Pair)

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  1. 0
    Posted 03/17/2015 at 19:20 | Permalink
    5.0 out of 5 stars
    Huge difference from ordinary plugs!, February 22, 2015
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    This review is from: NGK Iridium IX DCPR7EIX Spark Plugs for 1999-2015 Harley Davidson Twin Cam (Pair)
    I’m amazed at the difference these plugs made when installed on my 1994 Sportster. No more problems cold early and the engine runs much smoother at low rpm’s. They worked so well that I installed a set in my car.

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