I've actually heart people go through HELL with the software of their car after they do a throttle body mod. There was a guy on another forum where I read his horror story for a month about it. Assumingly if you use the dinan software made for it, you'll be fine, but if you've done anything else major modding (so the software wouldn't be accurate), you could have issues. After hearing all that, I decided not to do it.
