The rx8 plugs it is compatible for fd?

 

Why would you want to use RX8 spark plugs?If you check the RX8 club web site you will find a number of high performance RX8 owners are using RX7 plugs.You can find out why ther

 

I was thinking that it was better so I will put oem thank you

 

Actually, they are factory irridium plugs in the same heat range as the stock FD plugs. They're just expensive, and that's why Rx-8 guys run the BUR7EQ/BUR9EQ plugs. I think the ones you would be looking for are the RE9B-T or maybe it was just RE9B. Otherwise you could go for the BR10EIX irridium plugs which are about as expensive as the BUR9EQ, but they need a special thin socket to install.

 

my buddy just put new plugs on his 8, the ones you are talking about, and he spent over $100 on them. Seems like you could buy better plugs for that price maybe even cheaper.