Lambda O2 Oxygen Sensor For Austin Lotus Elise Exige Evora MG Rover Freelander TF ZR ZS MGF 200 MHK100840 A117E6007F MHK100840L 0258006127 Exhaust Manifold Replacement Part (1 Piece)Lambda O2 Oxygen Sensor For Austin Lotus Elise Exige Evora MG Rover Freelander TF ZR ZS MGF 200 MHK100840 A117E6007F MHK100840L 0258006127 Exhaust Manifold Replacement Part (1 Piece) Features : Brand new aftermarket replacement Oxygen (O2) sensor. Works in upstream and downstream positions Replaces upstream (pre cat) or downstream (post cat) sensor This is an OEM quality aftermarket direct replacement sensor. It has the same response characteristics