Hi, FYI I have the ClubSport remap (a good investment) with the sport 4-1 manifold and sport catalyst but I retrofit the standard factory silencer and I did' notice any real "power" or "torque" difference with the sport silencer...
I have switched back to the standard silencer because the sport silencer was too loud for me (especially on long distances) and my neighbour .... And the Belgian police :-)
Dada
