Right now, I only have AEM intake and S-Tune exhaust, so I'm not worried. Next on my list is cams, plenum and RT cats. I know TS can create custom flashes based on your equipment, but I would feel better with a more permenant solution like an AFC. I don't want to have the dealer reflash my ECU for some strange reason and lose everything. Besides, I'm a firm believer in Dyno tuning for a specific car as opposed to generic tuning stuff when reasonable.

At what point should I consider fuel tuning?