The InMotion mail-in tune will be a custom tune. Your fortunate that Rob gave InMotion all the dyno's and datalogs for each mod he tested along the r&d of each one. So far with the 178 and intake you can choose from several tunes. Only difference is if you want to use race gas or not. The 91 tune really will be all you need. Your going from fast to crazy watch out for telephone poles if you don't let off the gas pedal fast. The mani's will only make it all come together even more. Just depends on how fast you want the car. I have the mods your asking about and have my 1/4 mile times in my sig for each one.

Forgot to address the lean question. InMotion tunes are on the side of safety and running a little rich, but not lean. If you want to be agressive and push the envelope, just tell InMotion that is what you want. Even my 100 octane tune is conservative for a race tune.