FYI: Cheap OEM Ignition coils
 

I have an issue with emissions, high CO & HC, so I'm working through possible causes...I was checking the coils & found that one coil has the signal connector locking tab broken off, so nothing to ensure the connection stays put and the need to buy a new coil. I decided to buy the coil online at OReillyAuto, well I just received the coil and it is an OEM Denso coil, with Mazda part # sticker attached for about 50-60 dollars less than any OEM part I've seen. It is their ImportDirect OE ignition coils, so if you need any and want the OEM version this may save you money:)

https://cimg8.ibsrv.net/gimg/www.rx7...1d9f252ebc.jpg

Nice! I just looked it up, it's showing -

23-0324 leading coil (2 plug wire hookups) $145.99
23-0325 trailing coil (1 plug wire hookup) $136.99

It looks like they only have 1 SKU for the trailing coil. Only downside is the label, the coil itself is the same.

It's about $185 from Atkins per coil and about $159 from a random Mazda parts source online (which will probably kill you on shipping).

Dale