2003 - 2005 V6 Mazda 6 exhaust parts, brand new and never used.
$275 - Magnaflow 51739 catalytic converter - part (5) in the exhaust diagram
$300 - Magnaflow 51975 catalytic converter - part (3) in the exhaust diagram
$250 - Generic flex pipe - part (6) in the exhaust diagram
Or, $750 for all three.