Thread: RX-3 Spark Plug
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Old 08-06-2016, 10:21 AM   #9
rtking   rtking is offline
 
Join Date: Sep 2014
Location: Orange County, CA
Posts: 410
i have an iridium plug on my RX3. Other than peace of mind (using a known sparkplug with efficient arcing), no noticeable benefit.


 
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