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
FAQ
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.
How many extensions are included?
These are sold as a pair — one extension per bank, two total per set.
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.
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.
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.
Are these compatible with the Chevrolet SS Sedan?
Yes. These extensions are compatible with 2014–2018 Chevrolet SS Sedan applications.
