After extensive research trying to find out what is the current 2009 RX8 fuel injectors flow I finally got an answer from Paul Yaw from Phoenix.

He told me that the new 2009 RX8 fuel injectors flow:

405cc Primary

500cc Secondary

That was tested at 56 psi and using gasoline instead of mineral oil.

 

ok so the 400 i found the other day when we were talking was right. thanks man

 

so are you going to use the 500s?

 

Zoom--i think they are still fine tuning and havent settled on a particular one yet.
OD

 

They are rated as 390cc and 480cc by Mazda.