Trendz.... another question... on the Summit site the part number for the O2 says its a 4 wire...same part number as mine.... but mine has 5 wires... I dont want to order the wrong one at $150 each.... is this one at Summit correct...one thing it does say is Commander.. it does say replacement sensor for 534-198(which is my number... even has the same P/N on the sensor itself).. but I just find it strange about the 4 wire and 5 wire thanks
