i think the opposite, when you are doing things the car wasnt originally desinged for, dyno time will tell how well it does or doesnt like it.
just installed hks s-afr, it works well so far, right now im just learning idle and next set will try to lean it out in the 4k range, im not going to try anything else until i set up egt and afr guage-yes, it came with the box.
ill dyno soon, its the only way ill even put my foot in the boost.
too slow, I am the first with this!!!!!