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These long tube headers do not connect to the factory exhaust. Completing the system needs Kooks front connection pipes plus either the OEM adapters or an X-pipe or H-pipe.
The car will also need its ECU recalibrated after fitting. That is a requirement of the part, not an upsell: Kooks note that a P0420 or P0430 code is a symptom rather than a fault in the cats, and that it is usually resolved in the calibration or by finding an exhaust leak. Arrange the calibration with whoever normally handles your tuning, and check what is permitted where your vehicle is registered before you buy.
Stainless steel long tube headers for the 2014-2019 Corvette C7, All Trims (LT1/LT4/LT5 6.2L) with a 3″ collector, in a choice of three primary diameters, stepped.
Hand-crafted in the United States from locally sourced 16 gauge 304 stainless steel, with a limited lifetime warranty. Kooks are ISO 9001:2015 certified by NQA.
Kooks publish the expected gain for their headers as: Typically in the range of 15 to 20 hp with a tune, unless otherwise stated. Figures vary with the rest of the combination, the fuel and the calibration. We do not publish dyno numbers of our own for this part.
Kooks’ own guidance is that bigger is not always better: use the smallest primary your engine and power target allow, to keep both torque and top end.
| Primary | Part number | Price |
|---|---|---|
| 1-7/8″ mandrel bent | 21702400 | $1,423.04 |
| Stepped 1-7/8″ x 2″ mandrel bent | 21702500 | $2,273.88 |
| 2″ mandrel bent | 21702600 | $1,450.66 |
Kooks specify the OEM torque spec and sequence. Torque the flanges as you would an OEM manifold.
There are people at the other end of this. If you are nearby, come by and talk the build through in person. Further out, the same conversation happens on the phone or by email, and it is worth having before you order: headers on their own do not finish the system, and what is permitted depends on where the car is registered and what it is used for.
Talk to the shopor call805-267-9762
California law prohibits the use of any aftermarket exhaust part that modifies, removes or replaces original equipment catalysts unless the California Air Resources Board has issued an Executive Order for that part, or the part is used only on racing vehicles on closed courses. Kooks make no representation that this part has received an Executive Order or that it conforms to the racing vehicle exemption. Buyers are responsible for knowing and following the emissions law that applies where the vehicle is registered and driven.
WARNING: This product can expose you to chemicals including Chromium and Nickel, which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.
You'll receive an order confirmation email with your part details and invoice. Check the selected options and vehicle fitment, and contact FFP if anything needs correcting. We'll email tracking information when your order ships.
For made-to-order or custom-finish parts, contact FFP with your order number if you need an update.
Questions about a part before ordering? Call 805-267-9762 or use the chat for help with fitment, finish options, and current availability.
Absolutely! Once your order ships, you'll get an email with a tracking link so you can follow its journey from our shop to your doorstep.
If your order ships via freight, you'll get a separate email with a direct link to the carrier's tracking page — easy and stress-free.
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