BBK · New
BBK 18-20 Ford Mustang GT O2 Sensor Wire Harness Extensions 16in (Pair)
MPN 1121 · Store SKU bbk1121
Supplier stock checked 11/7/2026, 9:45:42 AM UTC. Adding a part does not reserve it.
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Product details
When you install a set of BBK Performance long tube exhaust headers on your muscle car or truck, the O2 sensor locations are relocated on the BBK header and mid pipe. The factory O2 sensor wire connectors will not be long enough to connect to the sensors any longer.. These extension harnesses extend the length needed and allow them to now connect easily - All our extension harnesses feature OEM Factory connectors to allow simple plug in installation to the factory wire harness so that the relocation is super simple and does not require any splicing of the factory harness at all. (Sold in Pairs) O2 Sensor Wire Extension Harness; OEM Style Factory Connectors; 16 in. Length; Front; Pair; 2018-24 MUSTANG GT FRONT OR REAR O2 HARNESS EXTENSIONS 16IN (PAIR) O2 Sensor Wire Extension Harness
Manufacturer fitment & guides
Check 1121 against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- California Proposition 65: Y
