When installing longtube headers on your 2011–2014 Mustang GT, the upstream O₂ sensors need to be relocated further downstream. Speed Engineering's 6-pin O₂ sensor extensions make that relocation simple — plug-and-play extensions that allow the O₂ sensors to be moved to the correct position without cutting or splicing any wiring.
Sold as a pair.
Features:
- 6-Pin Connector Design — Direct plug-and-play fit for 2011–2014 Ford Mustang GT applications
- Sold as a Pair — Both extensions included, one per bank
- No Cutting or Splicing Required — Direct connector fit for easy installation
Vehicle Applications:
Ford Mustang GT — 5.0L Coyote
- 2011 Ford Mustang GT — 5.0L Coyote
- 2012 Ford Mustang GT — 5.0L Coyote
- 2013 Ford Mustang GT — 5.0L Coyote
- 2014 Ford Mustang GT — 5.0L Coyote
Frequently Asked Questions:
Q: Why do I need O₂ sensor extensions when installing longtube headers? Longtube headers move the upstream O₂ sensor bungs further back from the cylinder head compared to factory manifolds. Without extensions, the factory O₂ sensor wiring is too short to reach the new bung location. These extensions bridge that gap without any cutting or splicing.
Q: How many extensions are included? These are sold as a pair — one extension per bank, two total per set.
Q: What connector type do these extensions use? These use a 6-pin connector design for direct plug-and-play fitment on 2011–2014 Ford Mustang GT applications. No cutting or splicing required.
Q: Are these compatible with 2015 and newer Mustang GT models? No. 2015–2017 Mustang GT models use a square 6-pin O₂ connector (31-1008) and 2018+ models use a flat 5-pin connector (31-1009). These extensions are specific to 2011–2014 applications only.