This is a special Spec Miata Ignition package we put together from the expert advice of Rossini Racing Engines. This setup was recommended to us by Rossini, and when someone who has countless hours of dyno time logged recommends a specific spark plug and wire set, it goes without saying that it is probably the best spark plug and wire set to use! So we therefore recommend it to you!
The MSD Spark Plug wire set we have found to be the best blend of quality, reliability, and "snappability", which is how we describe how good of a feeling you get when you snap the boots onto the spark plug and coils. Some sets have left us wishing we got a more confident feeling from this "snap", but the MSD set snaps very nice and we love that.
The NGK Racing Series Plugs are simple copper core spark plugs - like the OEM original fit NGK's - except they have a 3-point colder heat range of 9 as compared to the OEM BKR6E NGK plug, which have a heat range of 6. Spark plug heat ranges are a tricky thing, and really the only way to know what is going to work is by dyno tuning tons of different types of plugs, and this is why we trust Rossini's expertise! If you're a tech nerd like us, you'll be interested in learning more about Spark Plug Heat Ranges
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