OK finally finished with my Oxygen sensors as far as I know. Didn’t notice any improvement really.

CMTOOL Exhaust Back Pressure Tester with 6-Foot Hose, Exhaust Back Pressure Gauge Kit, Car Exhaust Pressure Tester, Automotive Exhaust Back Pressure Tester Kit with Adapter (M12&M18)

Liquid Wrench Gunk L112/6 Super Penetrant Spray – 11 oz, Gray

WD-40 Original Formula, Multi-Use Product with SMART STRAW SPRAYS 2 WAYS, 12 OZ [3-PACK]

TEKTON 3/8 Inch Drive x 7/8 Inch Offset 6-Point Oxygen Sensor Socket | 47749,