Manufacturer information. Check the part number and installation requirements for your vehicle.
Supplier details checked 2026-09-23 · Test catalog
Product description
O2 Extension Kit 2015+ Hellcat / 2018+ Trackhawk. 2) 6" Front Extension Harness (8-pin), 2) 18" 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 2015+Hellcat/2018+Trackhawk. 2) 6in. Front Extension Harness (8-pin); 2) 18in. 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 for 2015+ Hellcat & 2018+ Trackhawk
O2 Extension Kit for 2015+Hellcat/2018+Trackhawk
Features
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
Manufacturer notes
O2 Extension Kit for 2015+ Hellcat & 2018+ Trackhawk. Includes 2) 6" Front Extension Harness (8-pin) and 2) 18" 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.
O2 Extension Kit for 2015+Hellcat/2018+Trackhawk. Includes 2) 6in. Front Extension Harness (8-pin) and 2) 18in. 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.
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!"
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