My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Kooks Headers CAS-115999 O2 Sensor Extension Harness

Manufacturer

Part Number

CAS-115999
Sale Price

$115.97

Estimated ship date Thursday, October 22

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Kooks Headers CAS-115999 is a replacement O2 sensor harness designed to work with Kooks exhaust systems. This wiring harness allows your vehicle's oxygen sensors to function correctly when used with aftermarket Kooks headers, ensuring proper sensor positioning and connector compatibility with the factory ECU.

Key Features:

  • Designed for use with Kooks aftermarket header systems
  • Maintains proper O2 sensor signal communication with the factory engine management system
  • Quality connectors for reliable, secure fitment
  • Helps eliminate check engine lights related to O2 sensor positioning
  • Direct plug-and-play connectivity — no splicing or modification required

Kooks Custom Headers has been a trusted name in performance exhaust manufacturing since 1962. The CAS-115999 O2 sensor harness is a purpose-built accessory component engineered to complement Kooks header installations and keep your vehicle running correctly after an exhaust upgrade.

very good

Great service.

So far, it's been really easy.

Found what I needed!

Great experience. Fast shipping. Item arrived in good shape.

Great service quick delivery

Your online system would not allow me to put my Alaska address for billing, even though the order was to be shipped to Texas. I sent repeated emails requesting a phone call and no one would call me or provide me a number to call.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy