I have replaced the spark plugs just yesterday and now im lookin to do the ignition coils, the plugs were easy to find but the coil market seems to be iffy, where would you guys go (online) to find ignition coils for the rx8? Ive found some on amazon but the reviews are a bit odd, thank you!

 

Mazmart for OEM coils and BHR for the upgraded one. They both ship pretty fast

 

the OEM coils work great for street driven car.
https://shop.mazmart.com/en/rx8-ignition

 

As stated, for stock coils, OEM Mazda coils are the best. There are many places to choose when buying oem.

You can buy a cheaper aftermarket coil from Rock Auto or from the local parts stores but remember, you typically get what you pay for. You pay cheap, you get cheap.

The best setup out there for longevity is a BHR LS style coil setup. They aren't cheap but they last. I've had a set of BHR coils on my Brilliant Black 04 for 9 years and they've been amazing and free of defects for that entire span.