Kooks Headers kshEX685-Z O2 Sensor Extension Harness Kit for 2014-2019 Chevrolet Corvette C7

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!" O2 Extension Kit 2014-2019 C7 Corvette 1) 16in. Rear Extension Harness (4-Pin) 1) 21in. Rear Extension Harness (4-Pin). Extensions are included in Header kits where needed. This part is a replacement for damaged or lost Extensions. O2 Extension Kit 2014-2019 C7 Corvette 1) 16in. Rear Extension Harness (4-Pin) 1) 21in. Rear Extension Harness (4-Pin). Oxygen Sensor Extension harnesses are included in Header kits where needed. This part number should only be ordered as a replacement for damaged or lost Oxygen Sensor Extensions.

• Manufactured In The USA. Kooks Uses T304 Aircraft Quality Stainless Steel. Kooks Products are Backed by a Limited Lifetime Warranty To the Original Purchaser. Kooks Products Are Dyno And Race Tested and Designed For Maximum Power.
• Kooks Headers And Exhaust Make The Most Power In The Industry
• Kooks System Are Specifically Designed For Maximum Power
• Kooks Products Are Made Of T304 Air Craft Quality Steel
• Limited Lifetime Warranty To Original Purchaser
• 3 Generations Being Family Owned And Operated
• Every Kooks Product Is Dyno And Race Tested
• Kooks Products Fit And Install The Best
• 100 Percent Manufactured In The USA

The Kooks Headers kshEX685-Z O2 Sensor Extension Harness Kit is designed for 2014-2019 Chevrolet Corvette C7 applications equipped with Kooks headers. This replacement kit restores proper oxygen sensor connection routing when an original extension harness has been damaged or lost. It includes two rear oxygen sensor extension harnesses with 4-pin connectors, providing application-specific lengths for the C7 Corvette.

Kooks oxygen sensor extensions are included with applicable Kooks header kits when required, so this part number is intended to be ordered as a replacement rather than as a universal upgrade. The harnesses help position the oxygen sensor connections correctly after header installation while maintaining compatibility with the vehicle’s existing oxygen sensor wiring. Confirm connector configuration and vehicle application before ordering.

• Manufactured in the USA using Kooks’ established performance exhaust manufacturing standards.
• Kooks Headers products are dyno and race tested and developed for performance applications.
• Kooks is a family-owned manufacturer with three generations of leadership and more than 50 years of industry experience.
• Kooks products are backed by a limited lifetime warranty to the original purchaser.

This Kooks Headers replacement kit fits select 2014-2019 Chevrolet Corvette C7 models, including the Chevrolet Corvette applications listed for the 2014 through 2018 model years. The kit is not CARB approved, and California emissions requirements should be reviewed before installation. Professional installation is recommended to ensure secure connections and correct oxygen sensor harness routing.

Product Specifications and Technical Data

• Brand: Kooks Headers
• Part Number: kshEX685-Z
• Product Type: Oxygen sensor extension harness kit
• Application: 2014-2019 Chevrolet Corvette C7
• Rear Extension Harness 1: 16-inch length with 4-pin connector
• Rear Extension Harness 2: 21-inch length with 4-pin connector
• Construction: Automotive-grade replacement wiring harnesses
• Origin and Warranty: Made in the USA; limited lifetime warranty to the original purchaser

What's Included

• One 16-inch rear oxygen sensor extension harness with 4-pin connector
• One 21-inch rear oxygen sensor extension harness with 4-pin connector

Features:

• Application-specific replacement kit for 2014-2019 Chevrolet Corvette C7 models
• Includes 16-inch and 21-inch rear oxygen sensor extension harnesses
• 4-pin connectors support the factory oxygen sensor connection configuration
• Made in the USA by Kooks Headers and backed by a limited lifetime warranty to the original purchaser

Fitments:
2014 Chevrolet Corvette Stingray
2015 Chevrolet Corvette Stingray
2015 Chevrolet Corvette Z06
2016 Chevrolet Corvette Stingray
2016 Chevrolet Corvette Z06
2017 Chevrolet Corvette Grand Sport
2017 Chevrolet Corvette Stingray
2017 Chevrolet Corvette Z06
2018 Chevrolet Corvette Grand Sport
2018 Chevrolet Corvette Stingray
2018 Chevrolet Corvette Z06
2019 Chevrolet Corvette Grand Sport
2019 Chevrolet Corvette Stingray
2019 Chevrolet Corvette Z06
2019 Chevrolet Corvette ZR1

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1