Know the landed cost before you order
Prices include VAT. Shipping is charged separately and calculated at checkout for your destination. If no shipping option is shown, contact us for a quote before ordering.
Enjoy more of what makes your Blackwing special
The supercharged V8 is a big part of the Blackwing experience. This Kooks header-back exhaust completes a matching long tube header installation while retaining the compatible factory mufflers. Choose GREEN catted or Competition Only pipework, both with a 3" stainless exhaust and X-pipe arrangement for the 2022-2026 CT5-V Blackwing LT4.
SKUs: 23135120, 23135320
Keep the factory rear mufflers
The supplied system connects to the original mufflers after the factory exhaust is cut. You can upgrade the front and middle exhaust sections while keeping the rear mufflers you already know, with the cutting and final alignment handled during professional installation.
Choose the catalyst specification
GREEN catalysts support forced induction and are rated for applications up to 750 WHP for this listed exhaust. That is a catalyst application rating, not a promised gain from fitting the system. Competition Only pipework is catalyst-free and reserved for competition, off-road and track use.
Complete the header conversion
Matching Kooks long tube headers are required and purchased separately. Plan the tune around the finished header and catalyst combination. Your installer should check the steering-shaft heat shielding, O2 lead routing, exhaust clearances and fasteners after the first heat cycle.
Choose your option
| SKU | Cat Type | Fitting / contents | Stated use restriction |
|---|---|---|---|
| 23135120 | Competition Only | 3" header-back and X-pipe; factory-muffler connection requires cutting; headers purchased separately. | Competition, off-road and track use only. Not for use on public roads. Kooks competition-use waiver required. |
| 23135320 | GREEN Cats | 3" header-back and X-pipe; factory-muffler connection requires cutting; headers purchased separately. |
Vehicle fitment
| Years | Vehicle and trim | Engine | Applicable SKU / fitting conditions |
|---|---|---|---|
| 2022-2026 | Cadillac CT5 V Blackwing | 6.2L V8 | 23135120, 23135320 |
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 |
|---|---|
| Application | Cadillac CT5-V Blackwing, 2022-2026; supercharged 6.2 LT4 |
| Material | 304 stainless steel |
| System type | Header-back exhaust with X-pipe |
| Construction and diameter | Stainless steel; 3" pipework |
| Rear connection | Compatible factory mufflers; original exhaust cutting required |
| Required headers | Matching Kooks long tube headers, purchased separately |
| GREEN catalyst application rating | Up to 750 WHP; supports forced induction |
| Catalyst choices | Competition Only or GREEN Cats |
Frequently asked questions
Are the long tube headers included?
No. Choose the matching Kooks headers separately; this package supplies the exhaust behind them.
Will it fit a regular CT5-V?
This listing is for the 6.2 LT4 CT5-V Blackwing, not the V6 CT5-V.
Can I keep the factory mufflers?
Yes. The fitting procedure includes cutting the factory exhaust to make that connection.
Does the 750 WHP figure describe a power gain?
No. It is the application rating for the GREEN catalyst arrangement. Actual engine output depends on the engine, calibration and complete build.
