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O2 Sensors & Tune Up Kits

O2 Sensors & Tune Up Kits

Oxygen Sensors (O2's), are one of the most important parts of an LSX Swap. They relay the Air Fuel Ratio back to the ECM so your engine runs Optimally.

O2 Sensors are a Wear Item, just like a spark plug or serpentine belt. O2 Sensors that are high mileage, have been submerged in water, have been removed from a junkyard with a torch, or are in any other way damaged, should be replaced.

PSI Wiring Harnesses are Designed to use a Specific O2 Sensor, usually based on engine generation.

Genuine GM Delphi/Delco O2's are the preferred Sensor to Run, and are carried by PSI.

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