A Scorpion Cat Back Exhaust System is a good compromise between performance gains and ease of fitting, swapping out the original components from the catalytic converter back.Scorpion Cat Back Systems generally replace secondary catalytic converters where fitted. Some systems may go from the secondary catalyst back where necessary and these are described as Secondary Cat-Back Exhaust System.This in combination with Scorpions exhaust design know-how helps increase power through increased flow-rate and reduced back pressure but leaves primary catalytic converters in place so the car remains road legal and will pass MOTs.Scorpion take great pride in their on-going involvement in motorsport and this really shows in their exhausts. You can hear the touring car heritage in the exhaust note with it having more of a sporty touring edge than simply being loud.Each Scorpion cat back or half system utilises precision mandrel worked aircraft grade T304 steel. This is the highest standard steel used