Kooks header and GREEN-catted connection-pipe kit for the 2020-2022 Ford Mustang Shelby GT500 (5.2L). 2in x 3in T304 stainless headers with an EPA-certified GREEN catted connection pipe. Handcrafted in the USA and backed by a limited lifetime warranty on the headers.
Specifications
| Type | Header & green catted connection-pipe kit |
| Vehicle | Mustang Shelby GT500 5.2L (20-22) |
| Primary / Collector | 2in x 3in |
| Connection Pipe | GREEN catted (EPA-certified) |
| Material | T304 stainless steel |
| Part Number | 1156H630 |
| Warranty | Limited lifetime (headers) |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020 | Ford | Mustang | Shelby GT350 |
| 2020 | Ford | Mustang | Shelby GT350R |
| 2020-2022 | Ford | Mustang | Shelby GT500 |
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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