Know the landed cost before you order
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Keep your GT500 exhaust connected properly
Replace the adapters in your matching Kooks GT500 header-and-connection installation with the correct OEM rear interface. These 304 stainless adapters use a 3-inch x 2-3/4-inch connection for the 2020-2022 Shelby GT500 5.2.
SKUs: 11563000, 11563000-2
Buy the quantity you need
11563000 is one replacement adapter; two are required per car. 11563000-2 supplies the pair. Clamps are separate with the pair, so have the retained joints assessed when arranging the replacement.
Check what your complete kit already supplies
Two adapters are included with the matching GT500 header-and-connection kits. These individual adapter listings are useful for replacements or the stated connecting arrangement, so check your existing kit before buying another pair.
Choose your configuration
| SKU | Configuration | Supplied arrangement | Fitting / engine conditions |
|---|---|---|---|
| 11563000 | Adapter Size: 3" x 2-3/4" (GT500); Quantity: Single | One 3-inch x 2-3/4-inch replacement adapter; two per car | GT500 OEM rear exhaust; Kooks headers / connections; two adapters per car |
| 11563000-2 | Adapter Size: 3" x 2-3/4" (GT500); Quantity: Pair | Pair of 3-inch x 2-3/4-inch adapters; one pair per car; clamps separate | GT500 OEM rear exhaust; Kooks headers / connections; two adapters per car; clamps purchased separately |
Vehicle fitment
| Years | Vehicle / trim | Engine | Applicable SKU | Fitting conditions |
|---|---|---|---|---|
| 2020-2022 | Ford Mustang Shelby GT500 | 5.2L V8 | 11563000 | GT500 OEM rear exhaust; Kooks headers / connections; two adapters per car |
| 2020-2022 | Ford Mustang Shelby GT500 | 5.2L V8 | 11563000-2 | GT500 OEM rear exhaust; Kooks headers / connections; two adapters per car; clamps purchased separately |
Ordering and delivery
Estimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.
Technical specifications
| Specification | Details |
|---|---|
| SKUs | 11563000, 11563000-2 |
| Application | 2020-2022 Shelby GT500 5.2L |
| Adapter diameters | 3-inch x 2-3/4-inch |
| 11563000 quantity | Single replacement adapter; two required per car |
| 11563000-2 quantity | Pair; one pair adapts both pipes |
| Clamps | Purchased separately for pair |
| Required front parts | Kooks long tube headers and connection pipes |
| Rear connection | OEM GT500 exhaust |
| Complete kit contents | Two adapters included with matching GT500 header-and-connection kits |
| Material | 304 stainless steel |
Frequently asked questions
Are these for the standard GT 5.0 exhaust?
They are for the OEM GT500 rear exhaust. The GT 5.0 has a different interface.
Do I need them as extras with a matching complete GT500 kit?
The matching header-and-connection kits include two adapters. Order these when you need the replacement parts or the stated separate connection arrangement.
