Kooks header and catted Y-pipe kit for the 2019-2024 GM full-size trucks/SUVs (Chevy Silverado 1500, GMC Sierra 1500, Cadillac Escalade, Chevy Tahoe/Suburban, GMC Yukon) with the 6.2L V8. 1-7/8in x 3in T304 stainless long-tube headers with a catted Y-pipe. Handcrafted in the USA and backed by a limited lifetime warranty on the headers.
Specifications
| Type | Long-tube header & catted Y-pipe kit |
| Vehicle | GM 6.2L trucks/SUVs (Silverado/Sierra/Escalade/Tahoe) |
| Primary / Collector | 1-7/8in x 3in |
| Y-Pipe | Catted |
| Material | T304 stainless steel |
| Part Number | 2863H420 |
| Warranty | Limited lifetime (headers) |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2023 | Cadillac | Escalade | Luxury / Premium Luxury / Sport / V |
| 2019-2024 | Chevrolet | Silverado 1500 | High Country / LTZ / RST / Trail Boss / ZR2 |
| 2021-2023 | Chevrolet | Suburban | High Country / Premier / RST / Z71 |
| 2019-2024 | GMC | Sierra 1500 | AT4 / AT4X / Denali / SLT |
| 2021-2023 | GMC | Yukon / Yukon XL | AT4 / Denali / Denali Ultimate |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
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