When installing longtube headers, the upstream O₂ sensors need to be relocated further downstream. Speed Engineering's 24" triangle O₂ sensor extensions make that relocation straightforward — 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:
- 24" Length — Provides sufficient reach for upstream O₂ sensor relocation with longtube header installations
- Triangle Connector Design — Direct plug-and-play fit for LS2 and LS3 applications
- Sold as a Pair — Both extensions included, one per bank
- No Cutting or Splicing Required — Direct connector fit for easy installation
Vehicle Applications & Sensor Positions:
C5 Corvette — LS2
- C5 Corvette LS2 — HO2S Bank 2 Sensor 1 (B2S1) Right Front
- C5 Corvette LS2 — HO2S Bank 1 Sensor 1 (B1S1) Left Front
C6 Corvette — LS3/LS7
- C6 Corvette LS3/LS7 — HO2S Bank 2 Sensor 1 (B2S1) Right Front
- C6 Corvette LS3/LS7 — HO2S Bank 1 Sensor 1 (B1S1) Left Front
2010–2015 Chevrolet Camaro — LS3/L99/LTT
- 2010 Chevrolet Camaro LS3/L99/LTT — HO2S Bank 2 Sensor 1 (B2S1) Right Front
- 2010 Chevrolet Camaro LS3/L99/LTT — HO2S Bank 1 Sensor 1 (B1S1) Left Front
- 2011 Chevrolet Camaro LS3/L99/LTT — HO2S Bank 2 Sensor 1 (B2S1) Right Front
- 2011 Chevrolet Camaro LS3/L99/LTT — HO2S Bank 1 Sensor 1 (B1S1) Left Front
- 2012 Chevrolet Camaro LS3/L99/LTT — HO2S Bank 2 Sensor 1 (B2S1) Right Front
- 2012 Chevrolet Camaro LS3/L99/LTT — HO2S Bank 1 Sensor 1 (B1S1) Left Front
- 2013 Chevrolet Camaro LS3/L99/LTT — HO2S Bank 2 Sensor 1 (B2S1) Right Front
- 2013 Chevrolet Camaro LS3/L99/LTT — HO2S Bank 1 Sensor 1 (B1S1) Left Front
- 2014 Chevrolet Camaro LS3/L99/LTT — HO2S Bank 2 Sensor 1 (B2S1) Right Front
- 2014 Chevrolet Camaro LS3/L99/LTT — HO2S Bank 1 Sensor 1 (B1S1) Left Front
- 2015 Chevrolet Camaro LS3/L99/LTT — HO2S Bank 2 Sensor 1 (B2S1) Right Front
- 2015 Chevrolet Camaro LS3/L99/LTT — HO2S Bank 1 Sensor 1 (B1S1) Left Front
Note: LTT applications — B2S1 is Left/Front, B1S1 is Right/Front.
2014–2018 Chevrolet SS Sedan
- 2014 Chevrolet SS Sedan
- 2015 Chevrolet SS Sedan
- 2016 Chevrolet SS Sedan
- 2017 Chevrolet SS Sedan
- 2018 Chevrolet SS Sedan
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 24" 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 triangle connector design for direct plug-and-play fitment on LS2 and LS3 applications. No cutting or splicing required.
Q: Will these work with both C5 and C6 Corvettes? Yes. These extensions are compatible with C5 LS2 Corvette and C6 LS3/LS7 Corvette upstream O₂ sensor positions on both Bank 1 and Bank 2.
Q: Are these compatible with the 2010–2015 Camaro V6 LTT engine? Yes. These extensions fit the LTT V6 Camaro application, however note that the Bank 1 and Bank 2 sensor positions are reversed on the LTT compared to LS3/L99 applications — B2S1 is Left/Front and B1S1 is Right/Front on LTT engines.
Q: Are these compatible with the Chevrolet SS Sedan? Yes. These extensions are compatible with 2014–2018 Chevrolet SS Sedan applications.