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I'm investigating this as well, since i've got a laptop with a bad display. How would you use the mouse or other input device?

Or you could go this path: MBC set it at 18, and if you want less boost don't floor it. Take the money saved and buy a Valentine 1. My opinion is that if you can safely make 18 psi work (read good afr, no knock), then use your foot to limit power not a boost setting. However, if you're going...

I have used the Greddy Profec Spec II B on another car. Amazing little unit. Simple to use, but does everything you need. Also used MBCs. They are a good place to keep things simple, if you're changing lots of other variables. Both work, MBC=more bang for the buck.

I heard that the rx-8 had a "secret" feature that showed the OBDII gauge readings or something on the nav screen. Is there anything like this for the NAV on the speed6? Or is anyone displaying extra info (oil temp, boost, etc.) without adding any gauges? I'm really looking to keep the stock...

Stephanie, Sounds like you guys will have a hit with the XEDE setup. Put my in line for the speed6 release. 4DRHTRD, Beautiful car!

And doesn't the cat alter the AFR reading slightly? So maybe the tail pipe isn't really the true AFR (wink)

Sorry, to clarify what I'm saying. You're tuning as lean as possible without knocking, then scaling back for a little safety blanket. I'm just wondering whether that '12:1' AFR saftey margin is being applied to the baseline tune. If I'm remembering DI correctly, you can run a leaner mixture...

Stephanie, are any special considerations being made for Direct Injection? I was under the impression that DI was localized rich, but overall lean. Is the "safety margin" different for this application? Adam