Installing longtube headers that require relocating your oxygen sensors further downstream? Speed Engineering's 24" flat connector O₂ extensions are a plug-and-play solution using your factory O₂ harness connectors — no splicing or custom wiring required. Sold in pairs for both bank one and bank two relocation.
⚠️ Important — Verify Before Ordering:
- LT1 F-body (Camaro/Firebird): Some 1993–1997 LT1 applications use a square O₂ extension connector, while others use a flat connector. Please verify your connector type before ordering.
- LS1 C5 Corvette: Some C5 Corvette applications use a square O₂ extension connector, while others use a flat connector. Please verify your connector type before ordering.
Features:
- 24" Length — Provides sufficient length for downstream O₂ sensor relocation with longtube headers
- Flat Connector Design — Plug-and-play with factory flat-style O₂ harness connectors
- Sold in Pairs — Covers both bank one and bank two oxygen sensor relocation
- Plug-and-Play Installation — Connects directly to factory O₂ sensor harnesses, no splicing required
Applications:
Chevrolet Camaro & Pontiac Firebird — LT1 (4th Gen F-Body)
- 1993 Chevrolet Camaro/Pontiac Firebird — LT1 ⚠️ Verify flat vs. square O₂ connector before ordering
- 1994 Chevrolet Camaro/Pontiac Firebird — LT1 ⚠️ Verify flat vs. square O₂ connector before ordering
- 1995 Chevrolet Camaro/Pontiac Firebird — LT1 ⚠️ Verify flat vs. square O₂ connector before ordering
- 1996 Chevrolet Camaro/Pontiac Firebird — LT1 ⚠️ Verify flat vs. square O₂ connector before ordering
- 1997 Chevrolet Camaro/Pontiac Firebird — LT1 ⚠️ Verify flat vs. square O₂ connector before ordering
Chevrolet C5 Corvette — LS1
- 1997 Chevrolet Corvette C5 — LS1 ⚠️ Verify flat vs. square O₂ connector before ordering
- 1998 Chevrolet Corvette C5 — LS1 ⚠️ Verify flat vs. square O₂ connector before ordering
- 1999 Chevrolet Corvette C5 — LS1 ⚠️ Verify flat vs. square O₂ connector before ordering
- 2000 Chevrolet Corvette C5 — LS1 ⚠️ Verify flat vs. square O₂ connector before ordering
- 2001 Chevrolet Corvette C5 — LS1 ⚠️ Verify flat vs. square O₂ connector before ordering
- 2002 Chevrolet Corvette C5 — LS1 ⚠️ Verify flat vs. square O₂ connector before ordering
- 2003 Chevrolet Corvette C5 — LS1 ⚠️ Verify flat vs. square O₂ connector before ordering
Note: This extension pair is designed for 1997–2003 C5 Corvette LS1 applications. The C5 Corvette platform did not begin until the 1997 model year. Shoppers with a 1993–1996 Corvette (C4) should confirm fitment with Speed Engineering before ordering.
FAQ
Why do I need O₂ sensor extensions?
When installing longtube headers, the oxygen sensors often need to be relocated further downstream from their factory location. These extensions provide the additional length needed to relocate the sensors while maintaining a plug-and-play connection to your factory harness.
How do I know if I need the flat or square connector version?
Some 1993–1997 LT1 Camaro/Firebird and LS1 C5 Corvette applications use a flat connector for the O₂ sensor harness, while others use a square connector. Check your vehicle's factory O₂ sensor connector before ordering to ensure you get the correct version.
How many extensions are included?
This kit is sold in pairs — two 24" flat O₂ extensions, one for each bank.
Is installation plug-and-play?
Yes. These extensions connect directly to your factory O₂ sensor harness connectors with no splicing or custom wiring required.
Is this product street legal?
No. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).
⚠️ Race Use Only: This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).
