APPLICATION: 99 - 07 VORTEC ENGINES (GMC TRUCKS, CHEVY TRUCKS)

PARTS INCLUDED: MSD 8.5mm Ignition Wires, NGK Spark Plugs (Qty. 8), Oxygen Sensors (Qty. 2), Oxygen Sensor Bungs (Qty. 2).

NOTES: Upon checkout, customer can choose which style oxygen sensor is required (4 wire flat black, 4 wire square black, 4 wire square grey). All PSI Drive By Cable harnesses come with 4 wire square black connectors. All PSI Drive By Wire Gen III harnesses come with 4 wire square grey connectors. This kit is complete and will work with any LS1 Engine or truck engine (with vortec truck intake manifold) and is a great upgrade on any conversion engine.