Kooks / Oxygen Sensor Extensions

Kooks CT5-V Blackwing O2 Extension Kit (2022+) - CAS-115999

Check vehicle fitment
£97.50 VAT included. Shipping calculated for your destination.

Available to Order

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Delivery, customs and taxes Know the landed cost before you order

Prices include VAT. Shipping is charged separately and calculated at checkout for your destination. If no shipping option is shown, contact us for a quote before ordering.

Lead times and urgent orders Check timing before you commit

Estimated lead time: 4–6 weeks. Delivery may be faster depending on stock levels. Contact us before ordering if timing matters.

Fitment checked before you order

Send the vehicle, engine and current setup if you want us to confirm the exact application before checkout.

Technical specifications
Specification Details
SKU CAS-115999
Application CT5-V Blackwing, 2022+
Front extensions Two 10" eight-pin front leads
Rear extension One 33" four-pin rear lead
Total contents Three extension leads

Keep the Blackwing sensor leads matched to the installation

The Kooks CAS-115999 supplies the extension-lead specification for the listed 2022+ CT5-V Blackwing header application. The kit combines two front extensions with one longer rear extension, keeping the actual contents clear when replacing matched wiring.

SKU: CAS-115999

Three leads with defined positions

The two front leads each have 10" extension length and eight-pin connectors. The rear lead has 33" extension length and four-pin connectors. Match each lead to its position and route it away from hot exhaust parts and moving components.

Replacement wiring when needed

Relevant Kooks header kits include O2 extensions where required. This kit is for the matched extension requirement; it supplies neither new sensors nor a warning-light delete.

Vehicle fitment

Years Vehicle and trim Engine Applicable SKU / fitting conditions
2022-2026 Cadillac CT5 V Blackwing 6.2L V8 CAS-115999

Ordering and delivery

Estimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.

Technical specifications

Specification Details
SKU CAS-115999
Application CT5-V Blackwing, 2022+
Front extensions Two 10" eight-pin front leads
Rear extension One 33" four-pin rear lead
Total contents Three extension leads

Frequently asked questions

Does it supply four extension leads?

It supplies three: two front leads and one rear lead.

Are the front and rear connectors the same?

The front extensions are eight pin; the rear extension is four pin.

Will it fit a regular V6 CT5-V?

Choose this kit for the listed CT5-V Blackwing application, rather than the general CT5-V model name.

Delivery, customs and taxes

Know the landed cost before you order

Prices include VAT. Shipping is charged separately and calculated at checkout for your destination. If no shipping option is shown, contact us for a quote before ordering.

Lead times and urgent orders

Check timing before you commit

Estimated lead time: 4–6 weeks. Delivery may be faster depending on stock levels. Contact us before ordering if timing matters.

Fitment first

Check fit before you order

Model year, engine, drivetrain, hardware and existing modifications can all change what fits. Check the applications and supplier notes above, or send us your exact vehicle and setup before ordering.

Check vehicle fitment
Need help with this product?

Send us your vehicle, year, current setup and any fitting date, event, trip or deadline before ordering. We will help check fitment, product choice and timing.

Kooks CT5-V Blackwing O2 Extension Kit (2022+) - CAS-115999
Kooks CT5-V Blackwing O2 Extension Kit (2022+) - CAS-115999
Available to Order £97.50