Originally posted by "mizike"
The j-spec version is better and more powerfuel. It spools up way too fast :o The intercooler is bigger. In japan they don't have emision like we do, so more HP and less stuff on the engine like we have.
Mike
The S4 TMIC is the same as US version,
Trust me I was looking into them the only diffrence was the red letterings.They sell them on e bay all day.