well, i just installed a mazdaspeed cold air intake, and greddy catback. :D now i havent had any CEL codes yet, and hope not 2. but should i reset the the ECU with the pressing of the brake peddel till oil meter shoots up and resets? or should i have not to worry about this? should i do this after i install my mazsport igintion and flywheel this weekend also?

 

Since you do not have any CEL, I wouldn't worry about it... but it also couldn't hurt.
It'll eventually relearn itself.
I generally do a reset after an install, so I would do it after you install the Mazsport coils.