The 12th Day is up and it is a doozie. Anyone who has started modding may not be tempted but if you have not this (to me) would be the most solid start.
Cautionary Note - the RS already has an Intercooler Diverty from the factory but I am guessing DDM will make adjustment as needed.
For any interested Sonic owners, this is as good a start to modding as it gets.
Laborsmith