Scorpion Exhaust Valved Catback w/Polished TipsA 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. The 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