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  0 of 0 people found the following review helpful:
 
5 of 5 Spark Plugs August 26, 2019
Reviewer: Benjamin Hollick from Los Angeles, CA United States  
I needed spark, they make spark.  Sweet.

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5 of 5 May 15, 2019
Reviewer: Peter Goyer from Whitehouse Station, NJ United States  


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5 of 5 April 24, 2019
Reviewer: Anonymous Person from Attleboro, MA United States  


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5 of 5 perfect gap February 5, 2019
Reviewer: Adam Clump from Jerome, AZ United States  
They are OEM plugs that work perfectly fine. The gap was perfect, super easy install

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4 of 5 SP-537 plugs January 20, 2019
Reviewer: Ian Perry from Christchurch, Canterbury New Zealand  
Measured the Gap at over 0.28. Closed the gap up to 0.26 thou and fitted.

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5 of 5 Spark Plugs January 14, 2019
Reviewer: Ed Gomez from Yuba City, CA United States  
Plugs came gapped perfectly. Great Job Mountune..

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5 of 5 Spark plugs July 4, 2018
Reviewer: adam molatore from fallon, NV United States  
They are a 100 percent factory replacement. Alot cheaper than going direct to ford. I called my local ford dealer in Fallon, NV they wanted 13.95 per plug.


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5 of 5 December 20, 2017
Reviewer: Roger Collins from Glen Allen, VA United States  


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5 of 5 Spark Plugs September 5, 2017
Reviewer: B from United States  
All 4 plugs measured very close to each other. Between .0275 and .0280 Everything looks great and they work too!

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4 of 5 Check Gap August 5, 2017
Reviewer: Trevor Brown from Corona, CA United States  
OEM quality, direct replacement. Gap was barely off, but I figure that could be a shipping issue. No matter what, check plug gap before install.
15k Miles and still racing, gap has held and performance has not changed.

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