I understand that Borla no longer sell exhaust systems for the Contour. Not enough sales, even when they were newer.
It is generally felt that you have better options. The Borla doesn't provide much if any gains over the stock SVT exhaust.
How much power you gain will be mostly dependant on what mods you have made to the engine.
You might try telling us what mods you have made along with what year it is and asking for suggestions from those that have tried various systems.
