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Change your C8 front exhaust and keep its rear system
You can change the front of your Corvette exhaust while keeping the factory rear system. Kooks 21803100 replaces the original catalytic-converter connections with 3-inch 304 stainless Competition pipes, using stock-style flanges at the connecting points.
SKU: 21803100
Fits the listed C8 applications
These connections fit the 2020+ Stingray, 2024+ E-Ray and 2023+ Z06 applications. They work with OEM manifolds or Kooks headers and connect to the OEM cat-back, giving you a clear choice about how much of the exhaust to change.
The connection hardware is supplied
Gaskets and the bolt kit are included. When fitting to the 2020 Stingray OEM exhaust, the driver-side donut gasket is reused and a replacement passenger-side three-bolt gasket is supplied. Professional fitting should allow for access above the engine and check every joint after a heat cycle.
Matching products
For your 2020-2023 Stingray, choose the C8 Ultra-GREEN connections if you prefer a catted front connection to the factory rear exhaust.
Vehicle fitment
| Years | Vehicle / trim | Engine | Applicable SKU | Fitting conditions |
|---|---|---|---|---|
| 2020-2026 | Chevrolet Corvette Stingray | 6.2L V8 | 21803100 | OEM manifolds or Kooks headers; OEM rear exhaust |
| 2023-2026 | Chevrolet Corvette Z06 | 5.5L V8 | 21803100 | OEM manifolds or Kooks headers; OEM rear exhaust |
| 2024-2026 | Chevrolet Corvette E-Ray | 6.2L V8 | 21803100 | OEM manifolds or Kooks headers; OEM rear exhaust |
Intended use
21803100: Competition, off-road and track use only. Not for use on public roads.
The competition-use waiver applies to 21803100.
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 |
|---|---|
| SKU | 21803100 |
| Application | 2020+ Corvette C8 Stingray; 2024+ E-Ray; 2023+ Z06 |
| Pipe diameter | 3-inch |
| Front connection | OEM manifolds or Kooks headers |
| Rear connection | OEM cat-back; stock-style flanged connections |
| Included | Gaskets and bolt kit |
| Catalysts | Replaces factory catalytic converters; uncatted Competition version |
| 2020 Stingray OEM gasket fitting | Reuse driver-side donut gasket; replacement passenger-side three-bolt gasket supplied |
| Material | 304 stainless steel |
Frequently asked questions
Do I need Kooks headers to fit these pipes?
They can be used with OEM manifolds or Kooks headers. The rear connection is to the OEM cat-back.
Are these the catted version?
21803100 is the uncatted Competition version and replaces the factory catalytic converters.
