Madness V2 Cat Back Exhaust System for the New MINI Cooper S. Fully polished stainless steel exhaust featuring a 2.5 inch pipe diameter to 3 inch flow path. Our system fits all R53 Supercharged MINI Cooper S models manufactured from 2002 to 2006. Excellent deep tone and no drone along with a healthy dose of horsepower and torque. Our design also allows for low shipping costs unlike other systems that ship in oversized boxes