installed some prototype Swift springs 
http://www.mazdatalkforum.com/viewtopic.php?f=10&t=2776&p=17262#p17262

http://www.mazdatalkforum.com/viewtopic.php?f=10&t=2776&p=17262#p17262
Its running a stock MSM tune. Gotta fiddle around with it and milk some more power out of it!
I guess people really don't understand just how bad being rich hurts power...
But, but but... it's safer!
But, but but... it's safer!
Yay! Safer! Except for that whole thing where excess fuel washes oil off of cylinder walls...(I know you were joking
)
I run around 11-12:1 AFRs under boost.
Until you wash the cylinder walls down... Another reason I typically stay below 5500 rpm recently.