Why do I need an O2 sensor extension harness?

When you install long tube headers, the O2 sensor bungs are often relocated further downstream. This Kooks extension harness provides the extra length needed to connect your factory O2 sensors to the new header location.

Is this harness vehicle-specific?

Yes, this Kooks O2 sensor extension harness is specifically designed for the 2014-2019 Chevrolet Corvette C7. It ensures a direct fit and proper connection with the factory O2 sensor wiring.

What if I have other modifications to my exhaust system?

This extension harness is primarily designed for use with long tube header installations. If you have other modifications, such as aftermarket catalytic converters or exhaust systems, you may need to verify compatibility or consider a custom wiring solution.

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Est. 1957

Kooks 2014-2019 Chevrolet Corvette C7 O2 Sensor Extension Harness

Specifications

Brand: Kooks Headers
Part #: EX685-Z
UPC: 842422135324

Kooks 2014-2019 Chevrolet Corvette C7 O2 Sensor Extension Harness

Name: Kooks 2014-2019 Chevrolet Corvette C7 O2 Sensor Extension Harness
Brand: Kooks Headers
Price: 82.42 USD
Availability: InStock

$82.42

Only 4 left in stock

Extension harness for O2 sensors when installing long tube headers on your C7 Corvette.

Key Features

Extends O2 sensor wiring — allows connection after long tube header install
Enables proper connection of O2 sensors — maintains accurate readings
Well-built construction — ensures reliable performance

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits this vehicle

Chevrolet Corvette 2014-2019

Product Details

Kooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best Headers and complete exhaust systems for your street, race and off-road applications. We have won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and many other racing organizations. Now with three generations of family leadership, we are proud to say that all of our products are handcrafted here in the USA and we are proud to still be independently owned and operated. And don't forget, "Get Kookin with KOOKS!"