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4 plugs 2 leading 2 trailing.
the proper plugs come pre-gapped. you do not need to adjust them.
The rotary engine has a total of 4 spark plugs, the top 2 fire first with the front housing fire first. Hope this helps.
Denso W22EBR should be the correct OEM plug for your Mazda RX7 but to make sure have the Auto Parts store look it up for you just to double check.
4 in total.
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mazda doesnt rx7 anymore :(
You go to servicing
4 plugs. 2 are leading and 2 are trailing.
The Mazda Rx7 has the Wankel Rotary Engine in it
If you are looking specifically for impartial user reviews, I would suggest you head over to Amazon.com and look up the make/ model you are looking for. On the same page should be many reviews for you to read.
Mazda didn't make the RX7 in 1974.