★★★★★ 5
Fits!
Color: Premium-CF9846A
Perfect fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2025
Kooks 04-09 Cadillac CTSV & All Pontiac G8 12in - 02 Ext Harn Each
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Kooks 04-09 Cadillac CTSV & All Pontiac G8 12in - 02 Ext Harn EachSKU: CAS 109004 UPC: 842422120597 Kooks CAS 109004 12 Inch O2 Sensor Extension Harness for 20042009 Cadillac CTS V & 20082009 Pontiac G8 LS2 LS3 The Kooks 12 inch oxygen sensor extension harness solves wiring reach issues when installing long tube headers on 20042009 Cadillac CTS V and 20082009 Pontiac G8 models with LS2 or LS3 engines, providing a plug and play solution that repositions the upstream O2 sensors for accurate air fuel monitoring and ECU
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Your Kooks 04-09 Cadillac CTSV & All Pontiac G8 12in - 02 Ext Harn Each orders ship within 1-2 business days.
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- Standard: 3-7 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.4 ★★★★★
Based on 2433 reviews
Sort
Product Reviews
★★★★★ 5
Fits FJ...like that it has a border...
Color: Premium-CF9846A
No smell,has border,will buy again when needed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 30, 2024
★★★★★ 3
Didn't work for me
Color: Premium-CF9846A
I could not use this. After buying it I found out I had to cut some parts to replace it and decided to return it instead.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 21, 2025
★★★★★ 5
Fit
Size: 8.8" x 9.3" x 1.1"
Product looks and works well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
★★★★★ 5
Easy installation
Size: 8.8" x 9.3" x 1.1"
It fit my 2011 Honda accord coupe 👍🏼
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
