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Extreme PSI will be closed on Monday, May 29th in observance of Memorial Day. We will also be closed at 4:00PM EST on Friday, May 26th.

NGK AFX

NGK AFX

NGK Powerdex AFX Air-Fuel Ratio Monitor Kit
NGK Powerdex AFX Air-Fuel Ratio Monitor Kit
Out of stock
NGK Powerdex AFX GEN 2 Air-Fuel Ratio Replacement Sensor (AFRM)
NGK Powerdex AFX GEN 2 Air-Fuel Ratio Replacement Sensor (AFRM)
Price: $147.95
MSRP: $170.00 (save 13%)
Ships in 2-3 Days
NGK replacement harness for NGK AFX Wideband Controller (91101)
NGK replacement harness for NGK AFX Wideband Controller (91101)
Price: $69.95
MSRP: $158.00 (save 56%)
Ships in 24 hours
NGK/NTK Powerdex AFX GEN 2 Air-Fuel Ratio Monitor Kit (AFRM)
NGK/NTK Powerdex AFX GEN 2 Air-Fuel Ratio Monitor Kit (AFRM)
Price: $264.99
MSRP: $722.77 (save 63%)
Ships in 24 hours
NGK|NTK AFX Wideband Replacement Sensor
NGK|NTK AFX Wideband Replacement Sensor
Price: $147.95
MSRP: $170.00 (save 13%)
Ships in 24 hours