GMC Yukonbefore: 2004 GMC Yukon Exhaust Left Side Catalytic converter Replacement, Aftermarket $500 or OEM Grade $650after: 2004 GMC Yukon Exhaust Left Side Catalytic converter Replacement, Aftermarket $500 or OEM Grade $650GMC Yukon Primary Catalytic converter, aftermarket $650, OEM grade $850 eachLand Rover →