Return to Denso ITV24 Iridium Spark Plugs (Set of 4): MZR DISI (HR:8)

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Check your gaps February 5, 2018 Reviewer: Matt Bologna from Grovetown, GA United States   So love the product but my “pre-gapped” plugs came in at .22 which is too close.  It’s a good thing the site has the gapping because it should be .28-.32 for best results.  Remember that the iridium bends so don’t use the coin style grapper. Was this review helpful to you?

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A need product to unlock more potential April 22, 2012 Reviewer: Robert Meisenheimer from havelock, NC United States   A fast and VERY effective way to increase the feel of your drive. You WILL notice the difference of the acceleration and responsiveness of your Mazda. Was this review helpful to you?

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Great plugs! August 4, 2011 Reviewer: James from Lansing, MI United States   Comes pre-gapped which is very nice, the engine runs alot smoother and idles better.  Definitely noticed smoother acceleration and a quieter idle.  Would recommend these to anyone. Was this review helpful to you?

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Efficient May 4, 2011 Reviewer: Matthew from Whittier, NC United States   Ordered these to replace the stock FoMoCo (ford) ones. My experience with Motorcraft plugs has always been bad and leads me to think FoMoCo will not be different.So i'm replacing early. These denso's come pre-gapped properly. Car defiantly idles better with smoother acceleration. Was this review helpful to you?

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Great Product!!!! March 11, 2010 Reviewer: zachary ferris from ellsworth AFB, SD United States   These spark plugs are great!  They come pregaped and ready for install.  I checked myself to make sure and they were all on point.  After the install the car ran alot smoother, idle was smoother as well. Was this review helpful to you?

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Great plugs August 22, 2009 Reviewer: Anonymous Person from Houston, TX United States   I changed out my NGK plugs for these, both HR:8.  Car runs noticeably stronger and smoother.  Now, I also stretched the springs inside the coil assemblies, and used dielectric grease, which I didn't do before.  So, I don't know for sure how much improvement came from what.  But, the sum total is very noticeable.  And, these are even cheaper than NGK to boot. Was this review helpful to you?

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Service March 16, 2009 Reviewer: eric rapp from fairport, NY United States   I ordered the Denso ( pre gapped correctly ) for my modded Speed 3 and they arrived 1 1/2 days later. That is with the  free shipping and to NY! nice Was this review helpful to you?