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Upgrade your Blackwing and keep its factory valved mufflers
Enjoy your Blackwing with a matched Kooks front exhaust upgrade that retains the factory valved rear mufflers. These packages combine long tube headers, front connections and a 3" X-pipe, joining the original exhaust near the rear axle. Choose 1-7/8" or 2" headers with GREEN cats or Competition Only pipes.
SKUs: 2313F412, 2313F432, 2313F612, 2313F632
A larger part of the exhaust is included
These are header-and-exhaust packages, not just headers and short connection pipes. The kit continues through the 3" X-pipe to the OEM exhaust near the rear axle, keeping your factory valved mufflers. The mandrel-bent tubing is 304 stainless steel throughout the supplied exhaust.
The GREEN catalysts in 2313F632 are rated for up to 750 WHP.
Factory exhaust cutting, with no welding required
Installation requires the factory exhaust to be cut. The kit clamps to the original rear section, keeping your factory valved mufflers in place. Gaskets, hardware and clamps are included, so your installer has the fitting parts for this conversion.
Choose your configuration
| SKU | Configuration | Supplied arrangement | Fitting / engine conditions |
|---|---|---|---|
| 2313F412 | Header Size: 1-7/8"; Cat Type: Competition Only | 1-7/8" headers; Competition Only front connections and 3" X-pipe to OEM exhaust near rear axle | Factory exhaust cut required; Uncatted; competition use |
| 2313F432 | Header Size: 1-7/8"; Cat Type: GREEN Cats | 1-7/8" headers; GREEN Cats front connections and 3" X-pipe to OEM exhaust near rear axle | Factory exhaust cut required |
| 2313F612 | Header Size: 2"; Cat Type: Competition Only | 2" headers; Competition Only front connections and 3" X-pipe to OEM exhaust near rear axle | Factory exhaust cut required; Uncatted; competition use |
| 2313F632 | Header Size: 2"; Cat Type: GREEN Cats | 2" headers; GREEN Cats front connections and 3" X-pipe to OEM exhaust near rear axle; GREEN catalysts rated up to 750 WHP | Factory exhaust cut required |
Tuning for your exhaust upgrade
We recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. Contact us to discuss the right tuning route for your vehicle.
Vehicle fitment
| Years | Vehicle / trim | Engine | Applicable SKU | Fitting conditions |
|---|---|---|---|---|
| 2022-2026 | Cadillac CT5 V Blackwing | 6.2L V8 | 2313F412, 2313F432, 2313F612, 2313F632 | Factory exhaust cut required |
Intended use
2313F412, 2313F612: Competition, off-road and track use only. Not for use on public roads.
The competition-use waiver applies to 2313F412, 2313F612.
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 | 2313F412, 2313F432, 2313F612, 2313F632 |
| Application | 2022-2026 CT5-V Blackwing 6.2L supercharged V8 |
| Material | 304 stainless steel; mandrel-bent tubing |
| Header choices | 1-7/8" or 2" primaries; 3" collectors |
| Supplied exhaust | Selected front connections and 3" X-pipe |
| Rear interface | OEM exhaust near rear axle; factory valved mufflers retained |
| Included | Gaskets, hardware and clamps |
| Installation | Factory exhaust must be cut; no welding required |
| 2313F632 catalyst rating | Up to 750 WHP |
Frequently asked questions
Are new rear mufflers included?
The package joins the original exhaust near the rear axle and retains your factory valved mufflers.
Does fitting require welding?
No welding is required for the specified installation, but the factory exhaust does need to be cut.
What changes between the four kits?
Choose 1-7/8" or 2" headers, each with GREEN catted or Competition Only connections.
